Antibody quantification of viruses. Medical search. Frequent questions

Similar patterns were observed for spike protein-specific serum antibodies and T cells, but the magnitude of each of these responses was diminished relative to the control cohort. (nature.com)
We have shown in the lab that these new sensors can readily detect virus proteins or antibodies in simulated nasal fluid or donated serum," said David Baker, PhD, director of the Institute for Protein Design at the University of Washington, in a statement. (scienceboard.net)
New immunodiagnostic techniques such as the Halogen Immunoassay (HIA) are an important advance that enables the detection of particle-bound antigens using human serum IgE or specific antibodies. (cdc.gov)
Recently, this technique was modified to enable the characterization of even smaller bioaerosols by simultaneous double immunostaining with monoclonal antibodies and human serum IgE using fluorescent probes and confocal microscopy. (cdc.gov)
Diagnosis of HCV infection is mainly based on the detection of anti-HCV antibodies as a screening test with serum samples. (omu.edu.tr)
For testing such patients with or without risk factors for hepatitis C virus (HCV) infection, order HCSRN / Hepatitis C Virus (HCV) Antibody Screen with Reflex to HCV RNA, PCR, Asymptomatic, Serum. (mayocliniclabs.com)
For testing autopsy/cadaver or hemolyzed specimens, order HCCAD / Hepatitis C Virus Antibody Screen for Cadaveric or Hemolyzed Specimens, Asymptomatic, Serum for asymptomatic individuals or HCCDD / Hepatitis C Virus Antibody in Cadaveric or Hemolyzed Specimens, Symptomatic, Serum for symptomatic individuals. (mayocliniclabs.com)
3 months from time of exposure) or are repeatedly reactive by screening tests and should be confirmed by a more HCV-specific test, order HCVQN / Hepatitis C Virus (HCV) RNA Detection and Quantification by Real-Time Reverse Transcription-PCR (RT-PCR), Serum. (mayocliniclabs.com)
Cerebrospinal fluid (CSF) and serum concentrations, quantitative intrathecal synthesis, oligoclonal bands (OCB) patterns and affinity distributions of anti-Epstein Barr virus (EBV) antibodies were evaluated in 100 relapsing-remitting MS (RRMS) patients and 200 age- and sex-matched controls with other inflammatory neurological disorders (OIND) and other noninflammatory neurological disorders (NIND). (biomedcentral.com)
and 5) must be done by comparing with an international standard reference serum, having a known amount of rabies antibodies, to give the result in International Units (IU / ml). (ivami.com)
To consider the animal is protected, you must have a serum antibody titer less than 0.5 IU / mL. (ivami.com)
Enzyme-linked immunosorbent assay kit for quantification of Human Hepatitis E virus antibody (IgM)ELISA Kit in samples from serum, plasma, tissue homogenates and other biological fluids. (gentaur.co.uk)
Description: Quantitative sandwich ELISA for measuring Human Zika Virus IgG (ZV-IgG) in samples from cell culture supernatants, serum, whole blood, plasma and other biological fluids. (essentialbiosafety.info)
The Shoot Up Virus For Antibody reagent is RUO (Research Use Only) to test human serum or cell culture lab samples. (essentialbiosafety.info)
Description: Quantitative sandwich ELISA for measuring Pig Transfusion transimitted virus/Hepatitis H virus antibody (IgG) in samples from cell culture supernatants, serum, whole blood, plasma and other biological fluids. (essentialbiosafety.info)
The IDEXX Newcastle Disease Virus Antibody Tests are enzyme-linked immunosorbent assays (ELISA) designed to detect antibody to Newcastle disease virus (NDV) in chicken serum. (haychembd.com)
An assessment of immune status, as well as serological identification of Newcastle disease virus (NDV), requires a measurement of antibody to NDV in serum. (haychembd.com)
The Epstein-Barr Virus Antibodies reagent is RUO (Research Use Only) to test human serum or cell culture lab samples. (csb-bioenergetics.nl)
Description: Enzyme-linked immunosorbent assay kit for quantification of Human epstein-barr virus (EBv)antibody (IgG) in samples from serum, plasma, tissue homogenates and other biological fluids. (csb-bioenergetics.nl)
By using genetically modified cell lines, we developed a robust and sensitive method for the quantification of neutralizing antibodies in serum. (ghiaevent.com)
The neutralization values of the serum samples collected from hospitalized patients with COVID-19 or SARS-CoV-2 PCR-negative donors against the pseudotyped virus infection evaluated by the CRNT were compared with antibody titers determined from an enzyme-linked immunosorbent assay (ELISA) or an immunofluorescence assay (IFA). (biomedcentral.com)
As a result, the inhibition of pseudotyped virus infection was specifically observed in both serum and whole blood and was also correlated with the results of the IFA. (biomedcentral.com)
The neutralization antibody test (NT) for serum using live SARS-CoV-2 is a method in which inhibition of the serum upon viral infection is observed in the presence of neutralizing antibodies against proteins involved in viral binding and penetration in the serum. (biomedcentral.com)

The focus forming assay (FFA) is a variation of the plaque assay, but instead of depending on cell lysis in order to detect plaque formation, the FFA employs immunostaining techniques using fluorescently labeled antibodies specific for a viral antigen to detect infected host cells and infectious virus particles before an actual plaque is formed. (wikipedia.org)
The FFA is particularly useful for quantifying classes of viruses that do not lyse the cell membranes, as these viruses would not be amenable to the plaque assay. (wikipedia.org)
Like the plaque assay, host cell monolayers are infected with various dilutions of the virus sample and allowed to incubate for a relatively brief incubation period (e.g., 24-72 hours) under a semisolid overlay medium that restricts the spread of infectious virus, creating localized clusters (foci) of infected cells. (wikipedia.org)
The TCID50 (50% Tissue Culture Infectious Dose) assay is the measure of infectious virus titer. (wikipedia.org)
This endpoint dilution assay quantifies the amount of virus required to kill 50% of infected hosts or to produce a cytopathic effect in 50% of inoculated tissue culture cells. (wikipedia.org)
This assay may be more common in clinical research applications where the lethal dose of virus must be determined or if the virus does not form plaques. (wikipedia.org)
p24 antigen capture assay for quantification of human immunodeficiency virus using readily available inexpensive reagents. (ncbcs.org)
Antigen seize enzyme-linked immunosorbent assay (ELISA) for quantitation of the p24 gag protein of human immunodeficiency virus type-1 (HIV-1) is presently the commonest technique used to reveal virus replication each in vivo and in vitro. (ncbcs.org)
In conclusion, the Architect HCV antigen assay is highly specific, sensitive, reliable, easy to perform, reproducible, cost-effective, and applicable as a screening, supplemental, and preconfirmatory test for anti-HCV assays used in laboratory procedures for the diagnosis of hepatitis C virus infection. (omu.edu.tr)
Enzyme-linked immunosorbent assay (ELISA) systems have proven efficacious in the quantification of antibody levels to NDV, and facilitate the monitoring of immune status in large flocks. (haychembd.com)
To circumvent the need for BSL-3 laboratories, an alternative assay was developed that avoids live virus and instead uses a recombinant VSV expressing luciferase and possesses the full length or truncated spike proteins of SARS-CoV-2. (biomedcentral.com)
In conclusion, the CRNT for COVID-19 is a convenient assay system that can be performed in a BSL-2 laboratory with high specificity and sensitivity for evaluating the occurrence of neutralizing antibodies against SARS-CoV-2. (biomedcentral.com)
The enzyme-linked immunosorbent assay (ELISA), immunofluorescence assay (IFA), and immunochromatography utilize the principle of antigen-antibody reaction and were developed as serodiagnostic methods for SARS-CoV-2 infection. (biomedcentral.com)
Laboratory testing with a rapid conducted at that time showed that 6.1% of the residents assay suggested that a dengue virus (DENV) was the caus- in nearby regions of Uganda had specifi c antibodies to ative agent. (folkhalsomyndigheten.se)

Neutralizing antibodies were detected in 67% of patients with cancer after the first immunization, followed by a threefold increase in median titers after the second dose. (nature.com)
The experiments demonstrated high neutralizing antibody titers at days 20 and 41 post-challenge, irrespective of the dose of variants administered to the hamsters. (news-medical.net)
This is accompanied by a steady decline in antibody titers over a period of four to eight months after infection. (iastate.edu)
Introduction: Hemagglutination inhibition (HAI) antibody titers to seasonal influenza strains are important surrogates for vaccine-elicited protection. (bvsalud.org)
Performing qualification of these assays on a strain specific level enables the precise and accurate quantification of HAI titers. (bvsalud.org)

For example, cell-based assays typically measure infectious units (active virus). (wikipedia.org)
Plaque-based assays are a commonly used method to determine virus concentration in terms of infectious dose. (wikipedia.org)
Plaque assays determine the number of plaque forming units (PFU) in a virus sample, which is one measure of virus quantity. (wikipedia.org)
Measure total virus particles quickly and reproducibly to enable in vitro assays. (sartorius.com)
ViroTag ® no-wash assays for lentivirus, AAV, and other viruses minimize variability and enable confidence over traditional methods. (sartorius.com)
Fluorescently-labeled antibodies are central to many biochemical assays, however they aren't simple to multiplex past 3-Four colours. (davincieuropeanbiobank.org)
However, HAI assays can be variable across labs, with low sensitivity across diverse viruses due to lack of standardization. (bvsalud.org)
Recombinant immunoblot assays are used as supplemental tests and for the final detection and quantification of HCV RNA in confirmatory tests. (omu.edu.tr)
The purpose of this review is to provide a complete update of the various analytical methods for virus detection, such as molecular, immunological, sensor-based and other detection assays, along with the advantages and limitations of these strategies. (frontiersin.org)

We describe a method for generating transformed B cell lines using Epstein-Barr virus. (jove.com)
The purpose of this study was to investigate intrathecal production and affinity distributions of Epstein-Barr virus (EBV)-specific antibodies in multiple sclerosis (MS) and controls. (biomedcentral.com)
Human IgG antibody Laboratories manufactures the epstein-barr virus antibodies reagents distributed by Genprice. (csb-bioenergetics.nl)

The present application is drawn to neutralizing monoclonal antibodies for preventing and treating influenza virus infection and methods of treating influenza virus infection. (justia.com)
Neutralizing monoclonal antibodies (MAbs), particularly those having cross-clade neutralizing activity, play a critical role in immunoprotection against various influenza A virus (IAV) infections, particularly those caused by the highly pathogenic avian influenza H5N1 virus and any future unpredictable virus strains. (justia.com)
Disclosed herein are neutralizing monoclonal antibodies (MAbs) specific for the surface hemagglutinin (HA) protein of the influenza H5N1 strain. (justia.com)

Human IgG antibody Laboratories manufactures the shoot up virus for antibody reagents distributed by Genprice. (essentialbiosafety.info)

In addition to their biosensor model for detection of SARS-CoV-2, the scientists also demonstrated that similar models can be designed to detect proteins associated with cancer, namely human epidermal growth factor receptor 2 (HER2, breast cancer) and B-cell lymphoma 2 (BCL-2, lymphoma), and to detect hepatitis B antibodies. (scienceboard.net)
Multiplexable and Biocomputational Virus Detection by CRISPR-Cas9-Mediated Strand Displacement. (cdc.gov)
The two-stage bioaerosol sampler was used for the detection and size separation of co-aerosolized fungi and influenza viruses using qPCR methodologies. (cdc.gov)
This test profile is not useful for detection or diagnosis of acute HCV since HCV antibodies may not be detectable until after 2 months following exposure and HCV RNA testing is not performed on specimens with negative anti-HCV screening test results. (mayocliniclabs.com)
Although these biosensors are currently among the less popular tools for human disease detection, they have become useful tools for the screening and detection of pathogenic bacteria, fungi, and viruses because of their versatile advantageous features compared to other sensing devices. (frontiersin.org)
The detection and evaluation of concentration of influenza virus proteins in biological samples is critical in a broad range of medical and biological investigations regarding the concern over potential outbreaks of virulent influenza strains in animals and humans. (omicsonline.org)
The immunosensor was successfully applied in the detection and quantification of PB1-F2 in infected mouse lungs and cell lines, providing temporal expression profiles of PB1-F2 during viral infection. (omicsonline.org)
This parallel detection of PB1-F2 and NP suggests that applied sensor chip technology may be amenable to an arrow immunosensor for simultaneous detection of all known influenza virus proteins in infected tissues and cells. (omicsonline.org)
Therefore, establishing diagnostics, such as the detection of target viral genes and antibodies, is also required. (biomedcentral.com)

El Hag M. Acute antibody mediated rejection including hyperacute rejection. (pathologyoutlines.com)

For example, the production of virus-based vaccines, recombinant proteins using viral vectors, and viral antigens all require virus quantification to continually monitor and/or modify the process in order to optimize product quality and production yields and to respond to ever changing demands and applications. (wikipedia.org)
February 1, 2021 -- Scientists have developed biosensors to detect SARS-CoV-2 proteins and antibodies in simulated nasal fluids and human sera, according to a study published in Nature on January 27. (scienceboard.net)
Abcam's Gold Conjugation Kit allows antibodies or proteins to be covalently attached to ultra-stable Gold nanoparticles at very high OD quickly and easily. (abcam.com)

Other examples of specific instances where viruses need to be quantified include clone screening, multiplicity of infection (MOI) optimization, and adaptation of methods to cell culture. (wikipedia.org)
Specifically, a confluent monolayer of host cells is infected by applying a sample containing the virus at varying dilutions and then covered with a semi-solid medium, such as agar or carboxymethyl cellulose, to prevent the virus infection from spreading indiscriminately, as would occur in a liquid medium. (wikipedia.org)
The virus-infected cell will lyse and spread the infection to adjacent cells, where the infection-to-lysis cycle is repeated. (wikipedia.org)
The PFU/mL number represents the concentration of infectious virus particles within the sample and is based on the assumption that each plaque formed is representative of an initial infection by one infectious virus particle. (wikipedia.org)
Neutralizing antibodies can provide a first line of defense against influenza pathogens and passive immunization with neutralizing MAbs can provide immediate effects to prevent the spread of influenza infection and mortality. (justia.com)
These two MAbs were proven to inhibit virus infection in the post-attachment process rather than inhibition of receptor binding. (justia.com)
Also disclosed herein is a method of treating influenza virus infection in a subject in need thereof comprising administering a therapeutically effective amount of the neutralizing antibody specific for an epitope having at least 90% homology to amino acids +72-115 of the HA1 domain of H5N1 influenza virus hemagglutinin and thereby treating said influenza virus infection in said subject. (justia.com)
Taken together, these data show that the nasal epithelium of children supports lower infection and replication of ancestral SARS-CoV-2, although this may be changing as the virus evolves. (plos.org)
Opportunistic testing of people at risk of hepatitis B virus infection should be undertaken, particularly for people born in intermediate- and high-prevalence countries, and Aboriginal and Torres Strait Islander people ( 1 ). (hepatitisb.org.au)
This chapter discusses who should be tested for hepatitis B virus (HBV) infection, and details the specific tests for HBV infection and the interpretation of test results. (hepatitisb.org.au)
people with human immunodeficiency virus (HIV) or hepatitis C virus (HCV) infection, people undergoing haemodialysis and all pregnant women. (hepatitisb.org.au)
However, field observation suggests that most infected pigs eventually become immune, then cease to shed virus by 60 days post-infection. (iastate.edu)
To identify key genes differentially expressed in the human retinal pigment epithelium (hRPE) following low-level West Nile virus (WNV) infection. (molvis.org)
Low-level WNV infection of hRPE cells induced expression of genes that are typically associated with the host cell response to virus infection. (molvis.org)
It expresses a range of cell surface molecules involved in adaptive and innate immunity, as well as crucial sentinel molecules, including toll-like receptors (TLRs), which are pivotal in early cellular defense against virus infection. (molvis.org)
This diagnostic test is indicated for testing symptomatic individuals that may or may not have risk factors for a hepatitis C virus infection. (mayocliniclabs.com)
The current scenario regarding the widespread Zika virus (ZIKV) has resulted in numerous diagnostic studies, specifically in South America and in locations where there is frequent entry of travelers returning from ZIKV-affected areas, including pregnant women with or without clinical symptoms of ZIKV infection. (frontiersin.org)
This virus causes a severe respiratory tract infection in high-risk populations such as elderly people, young children and patients with chronic lung and heart diseases. (omicsonline.org)
The quantification of anti-SARS-CoV-2 antibodies by serological methods is indicative of a previous exposition to the virus, but does not predict protection against re-infection. (ghiaevent.com)
Measuring the SARS-CoV-2 neutralizing antibodies is important for proper diagnosis, to study the serological epidemiology and determine infection control of SARS-CoV-2. (biomedcentral.com)
These tests detect antibodies to HCV (anti-HCV) and are used for screening and diagnosing HCV infection. (medscape.com)
Although preventing blood exposures is the primary means of preventing occupationally acquired human immunodeficiency virus (HIV) infection, appropriate postexposure management is an important element of workplace safety. (cdc.gov)
ABSTRACT Chronic hepatitis C virus (HCV) infection combined with occult hepatitis B virus (HBV) infection has been associated with increased risk of hepatitis, cirrhosis and hepatocellular carcinoma. (who.int)
RÉSUMÉ L'infection chronique par le virus de l'hépatite C associée à une infection occulte par le virus de l'hépatite B a été associée à un risque accru d'autres hépatites, de cirrhose et de carcinome hépatocellulaire. (who.int)
Z ported human infections indicated that clinical characteris- ika virus (ZIKV) is a mosquito-transmitted virus in the tics of infection with ZIKV included fever, headache, mal- family Flaviviridae and genus Flavivirus . (folkhalsomyndigheten.se)
I am particularly interested in the virus-host interactions that take place when HIV establishes infection, and how HIV-2 can be used as a model to identify an HIV-1 vaccine or functional cure. (lu.se)

For example, patients with autoimmune conditions or chronic lymphocytic leukemia treated with B cell-depleting antibodies have predictably diminished humoral responses to vaccination, whereas responses by patients on anti-TNF therapies are less affected 6 , 7 . (nature.com)
My research interests focus on understanding virus-host interactions, factors for virus entry, pathogenicity and immunogenicity, mechanisms of viruses to evade immune system, humoral immune response and possibilities of vaccine development. (lu.se)

Presence of Middle East respiratory syndrome coronavirus antibodies in Saudi Arabia: a nationwide, cross-sec- tional, serological study. (who.int)

Human immunodeficiency virus (HIV) treatment program has grown exponentially in Nigeria largely due to improved Antiretroviral therapy (ART) regimen which has changed the course of HIV/AIDs by enabling patients to live longer, raising concern of the co-existence of HIV with other chronic illnesses, notably non communicable diseases (NCDs). (bvsalud.org)

It is used in both research and development (R&D) in academic and commercial laboratories as well as in production situations where the quantity of virus at various steps is an important variable that must be monitored. (wikipedia.org)
Virological testing was done by two closely-collaborating laboratories using the same standards of technology for RT-PCR and virus isolation, confirming each other's results based on almost all individual samples. (medrxiv.org)

Thus the development of an effective and safe vaccine against divergent influenza A virus strains is urgently needed for the prevention of future outbreaks of influenza. (justia.com)
Furthermore, these vaccines are limited to one or just a few strains and don't produce highly potent neutralizing antibodies or cross-reactive immunity against divergent influenza viruses. (justia.com)
However, it has been difficult to obtain MAbs which neutralize divergent strains of influenza viruses with sufficient cross-protective immunity. (justia.com)
The MAbs recognize the highly conserved HA1 region of H5N1 hemagglutinin and inhibit multiple strains of the H5N1 virus, as well as treated mice infected with a lethal dose of H5N1 viruses of two divergent strains, demonstrating their potential as therapeutic agents for multivalent prophylaxis and treatment of influenza. (justia.com)
Two distinct strains of virus, one in Europe and one in the United States, were characterized as genetically different but are clinically similar in most respects. (iastate.edu)
Strains of PRRS virus vary markedly in virulence. (iastate.edu)
The World Health Organization is concerned about the highly virulent strains of IAV, such as H5N1 avian viruses which has about 60% lethality rate [ 1 ]. (omicsonline.org)

This report provides an update through June 2021 of the results of routine screening for antibodies to the human immunodeficiency virus (HIV) among members of the active and reserve components of the U.S. Armed Forces and through Dec. 2020 among civilian applicants for military service. (health.mil)
Overall (Jan. 2016-June 2021) HIV antibody seroprevalences were highest among Army reservists, Army National Guard members, and Navy reservists and lowest among Air National Guard members, Marine Corps active component members, and Air Force active component members. (health.mil)

Blood tests for syphilis (a fluorescent treponemal antibody-absorption [FTA-ABS]), a complete blood count (CBC), an autoimmune panel (antinuclear antibodies [ANAs], sedimentation rate, rheumatoid factor), and thyroid function tests for hypermetabolism may be useful. (medscape.com)
The test quantifies the rabies antibody by a virus neutralization procedure (FAVN: Fluorescent Antibody Virus Neutralization) using a quantized rabies virus CVS-11 strain suspension. (ivami.com)

Can antibodies to seasonal coronaviruses protect against SARS-CoV-2? (scienceboard.net)

Porcine reproductive and respiratory syndrome virus (PRRSV) occurs in all age groups. (iastate.edu)
Here we provide a detailed virological analysis of nine cases, providing proof of active virus replication in upper respiratory tract tissues. (medrxiv.org)
Active virus replication in the upper respiratory tract puts prospects of COVID-19 containment in perspective. (medrxiv.org)

The encoded protein is induced by type I and type II interferons and antagonizes the replication process of several different RNA and DNA viruses. (thermofisher.com)
Cyclin A degradation by primate cytomegalovirus protein pUL21a counters its innate restriction of virus replication. (virosin.org)
There is an urgent need for information on body site - specific virus replication, immunity, and infectivity. (medrxiv.org)

CAR-T viral vector quantification has never been easier or faster. (sartorius.com)
Adeno-associated virus (AAV) is probably the most generally used viral vector for each organic and gene therapeutic applications1. (davincieuropeanbiobank.org)

The virus is highly infectious (infectious dose is as little as 10 virions) but not highly contagious. (iastate.edu)
Infectious virus was readily isolated from throat- and lung-derived samples, but not from stool samples in spite of high virus RNA concentration. (medrxiv.org)

Antibody levels persisted to at least 1 year, and Ad26.ZEBOV booster vaccination demonstrated the presence of vaccination-induced immune memory. (plos.org)

At 1 week after a third immunization, 16 participants demonstrated a median threefold increase in neutralizing antibody responses, but no improvement was observed in T cell responses. (nature.com)
Disclosed herein are neutralizing antibodies with cross-neutralizing activity and cross-protective effects against divergent stains of influenza virus, which are specific for an epitope having at least 90% homology to amino acids +72-115 of the HA1 domain of H5N1 influenza virus hemagglutinin. (justia.com)
In one embodiment disclosed herein, a neutralizing antibody specific for an epitope having at least 90% homology to amino acids +72-115 of the HA1 domain of H5N1 influenza virus hemagglutinin is provided. (justia.com)
In another embodiment, the neutralizing antibody is a monoclonal antibody such as a mouse antibody, a humanized antibody, a chimeric antibody, or a fragment thereof. (justia.com)
Also disclosed herein is a pharmaceutical formulation for neutralizing influenza virus comprising an antibody specific for an epitope having at least 90% homology to amino acids +72-115 of the HA1 domain of H5N1 influenza virus hemagglutinin. (justia.com)
However, the groups of hamsters that received the VIC01 target dose of 5E+02 had lower circulating neutralizing antibodies as compared to two other higher target dose groups of 5E+04 and 5E+03. (news-medical.net)
The best current available methods to quantify neutralizing antibodies are expensive and heavy procedures with low standardization for large scale studies. (ghiaevent.com)
Furthermore, to measure SARS-CoV-2 neutralizing antibodies under BSL2 conditions, a chemiluminescence reduction neutralization test (CRNT) for SARS-CoV-2 was developed. (biomedcentral.com)
The S protein is the main target with which the neutralizing antibodies react. (biomedcentral.com)
Generally, the NT is the standard method used to confirm the presence of neutralizing antibodies against SARS-CoV-2. (biomedcentral.com)
Disentangling and visualizing the key epitopes for neutralizing antibodies against SARS-CoV-2 at the atomic level - Implications for development of vaccines against COVID-19. (lu.se)

Can be caused by HLA and non-HLA donor specific antibodies (e.g. (pathologyoutlines.com)
In this case, the researchers designed protein-based biosensors that recognize specific molecules on the surface of a particular virus and bind to them, then emit light through a biochemical reaction. (scienceboard.net)
The developed immunosensoris based on a non-the-chipcovalently immobilized specific monoclonal anti-PB1-F2 antibody and a SPR technology. (omicsonline.org)
In lungs of infected mice, the influenza virus structural nucleoprotein NP was detected in parallel using a specific anti-NP antibody. (omicsonline.org)
This antibody is specific to 60kDa latent membrane protein (LMP-1) encoded by the BNLF1 gene of the EBV. (csb-bioenergetics.nl)

Virus quantification is counting or calculating the number of virus particles (virions) in a sample to determine the virus concentration. (wikipedia.org)
For incompatible buffers and low antibody concentrations, use our rapid antibody purification and concentration kits for Nanoparticles. (abcam.com)

The blood sample must be drawn at least 30 days after completion of the vaccination to allow time for antibodies are generated, and the time required by the European regulation currently in force (EU Regulation No.. 576/2013). (ivami.com)

Anti-Ebola virus glycoprotein (EBOV GP) binding and neutralising antibodies were measured at baseline and at predefined time points throughout the study. (plos.org)
Description: This is purified Mouse monoclonal antibody against Ebola virus VP40 for WB, ELISA. (essentialbiosafety.info)

There are many ways to categorize virus quantification methods. (wikipedia.org)
Moreover, unlike passive methods, the coating process is independent of the isoelectric point of the antibody, avoiding the need for extensive trials at different pH values. (abcam.com)

The scientists applied this approach to design biosensors of antibodies against SARS-CoV-2 protein epitopes and of the receptor-binding domain (RBD) of the SARS-CoV-2 spike protein. (scienceboard.net)

Plates are subsequently probed with fluorescently labeled antibodies against a viral antigen, and fluorescence microscopy is used to count and quantify the number of foci. (wikipedia.org)

however the identification and quantification of submicron particles remains a challenge. (cdc.gov)

cells are activated by interaction with antigens and obtain T indicated that the cell lines representing a defined cell help, they mature into terminally differentiated plasma stage generally presented a high similarity in over- cells secreting large amounts of antibodies [10 -12]. (lu.se)

Notably, organ transplant recipients mount very poor antibody responses to the first mRNA immunization relative to healthy individuals 10 , which increase somewhat after the second immunization 8 . (nature.com)
Similarly, in patients with cancer with solid or hematological malignancies, antibody responses are markedly diminished after the first immunization but improve somewhat after the second 9 . (nature.com)
Antibody responses were observed until Day 365. (plos.org)

ABL1 transcript [e14a2 and/or e13a2] which is amenable to standardized RQ-PCR quantification by the central laboratory assessment. (who.int)

Genofunc: genome annotation and identification of genome features for automated pipelining analysis of virus whole genome sequences. (cdc.gov)
There is considerable heterogeneity in the genome of the PRRS virus because of inherent errors common in transcription of RNA. (iastate.edu)

In another embodiment, the epitope has at least 95% or at least 98% homology to amino acids +72-115 of the HA1 domain of H5N1 influenza virus hemagglutinin. (justia.com)

they help to classify the virus into the 6 major genotypes. (medscape.com)
There are 6 major genotypes of hepatitis C virus (HCV), which vary in their response to treatment. (msdmanuals.com)

Every year, seasonal Influenza A virus (IAV) affects millions of people leading to illness and death. (omicsonline.org)

This has led to a growing concern regarding the pandemic potential of the highly pathogenic avian influenza H5N1 viruses. (justia.com)
The virus often appears to interact with other pathogenic viruses, bacteria and Mycoplasma hyopneumoniae to magnify severity of diseases. (iastate.edu)
However, this method takes a long time because it depends on the growth of the virus, and it is not a simple measuring system in terms of complicated handling and biosafety for highly pathogenic SARS-CoV-2. (biomedcentral.com)

Indeed, just an unpredictable fraction of total antibodies is considered to neutralize SARS-CoV-2. (ghiaevent.com)

Dried capillary blood samples are an excellent alternative to venous blood samples and can be analysed subsequently in the lab, e.g. for antibodies against SARS-CoV-2. (euroimmun.de)

The researchers were able to demonstrate that their SARS-CoV-2 biosensor does not react to other antibodies that might also be in the blood, including those that target other viruses, which is an important consideration for avoiding false-positive test results. (scienceboard.net)
A new study shows that antibodies against the original 2003 SARS-CoV also react with the current SARS-CoV-2 strain, but only with limited effectiveness. (scienceboard.net)

The virus spreads readily by direct contact. (iastate.edu)

Blood and urine never yielded virus. (medrxiv.org)

Anatomy17

Organisms83

Diseases14

Chemicals and Drugs58

Analytical, Diagnostic and Therapeutic Techniques and Equipment45

Phenomena and Processes42

Disciplines and Occupations2

Information Science4

Health Care7

Serum23

Assay14

Titers5

Assays9

Epstein Barr3

Monoclonal antibodies3

Reagents1

Detection9

Acute1

Proteins3

Infection26

Humoral2

Serological1

Chronic1

Laboratories2

Strains7

20212

Fluorescent2

Coronaviruses1

Respiratory3

Replication3

Viral vector2

Infectious2

Immune1

Neutralizing11

Specific5

Concentration2

Vaccination1

Ebola2

Methods2

Epitopes1

Quantify1

Particles1

Antigens1

Responses3

Amenable1

Genome2

Influenza virus1

Major genotypes2

Seasonal1

Pathogenic3

Neutralize1

Subsequently1

React2

Readily1

Urine1