*  Pandemic H1N1/09 virus
... but it has been found that they can continue to shed virus for several days after that. The virulence of swine flu virus is ... The Pandemic H1N1/09 virus is a swine origin Influenza A virus subtype H1N1 virus strain responsible for the 2009 flu pandemic ... In July 2009, WHO experts named the virus "pandemic H1N1/09 virus" to distinguish it from both various seasonal H1N1 virus ... which allows pieces of RNA from different viruses to mix and form a novel type of virus as new virus particles are being ...
*  Herpes labialis
... latent viruses. Asymptomatic shedding of contagious virus particles can occur during this stage. Prodromal (day 0-1): Symptoms ... Virus shedding can still occur during this stage. The recurrent infection is thus often called herpes simplex labialis. Rare ... The virus moves from the mouth to remain latent in the central nervous system. In approximately one-third of people, the virus ... The cause is usually herpes simplex virus type 1 (HSV-1) and occasionally herpes simplex virus type 2 (HSV-2). The infection is ...
*  Bovine malignant catarrhal fever
The virus is passed from mother to offspring and shed mostly in the nasal secretions of wildebeest calves under one year old. ... Shedding of the virus is greater from 6-9 month old lambs than from adults. After experimental infection of sheep, there is ... Finally, during the shedding stage, the virus undergoes another change and shifts its target cells from lymphocytes to nasal ... 1981 Mar;29(1):111-2. "Malignant catarrhal fever virus shedding by infected cattle". CS1 maint: Uses authors parameter (link) ...
*  Saker falcon
"Protection and Virus Shedding of Falcons Vaccinated against Highly Pathogenic Avian Influenza A Virus (H5N1)". Emerging ...
*  Norovirus
The viruses continue to be shed after symptoms have subsided and shedding can still be detected many weeks after infection. ... Hawaii virus; Snow Mountain virus; Mexico virus; Desert Shield virus; Southampton virus; Lordsdale virus; Wilkinson virus. ... which includes Bristol virus, Lordsdale virus, Toronto virus, Mexico virus, Hawaii virus and Snow Mountain virus. Noroviruses ... In addition to "Norwalk agent" and "Norwalk virus", the virus has also been called "Norwalk-like virus", "small, round- ...
*  Influenza
... but with viral shedding preceding illness by one day. Children are much more infectious than adults and shed virus from just ... In virus classification influenza viruses are RNA viruses that make up three of the five genera of the family Orthomyxoviridae ... In otherwise healthy adults, influenza virus shedding (the time during which a person might be infectious to another person) ... Viruses can replicate only in living cells. Influenza infection and replication is a multi-step process: First, the virus has ...
*  Marek's disease
However, it does reduce the amount of virus shed in the dander, hence reduces horizontal spread of the disease. Marek's disease ... However, because vaccination does not prevent infection with the virus, the Marek's disease virus has evolved increased ... standard and quantitative PCR for identification of the virus, virus isolation to confirm infections, and serology to confirm/ ... Viruses related to MDV appear to be benign and can be used as vaccine strains to prevent Marek's disease. For example, the ...
*  Fujian flu
Webster in July 2005 reveal further progression toward pathogenicity in mice and longer virus shedding by ducks. Asian lineage ... viruses, three influenza A (H1) viruses, one influenza A (H7N2) virus, and 71 influenza B viruses. Of the 949 influenza A (H3N2 ... The "H5N1 viruses from human infections and the closely related avian viruses isolated in 2004 and 2005 belong to a single ... "Many experts who follow the ongoing analysis of the H5N1 virus sequences are alarmed at how fast the virus is evolving into an ...
*  Spanish flu research
Results reported by Webster in July 2005 reveal further progression toward pathogenicity in mice and longer virus shedding by ... of the 1918 virus and subsequent human viruses differ by only 10 amino acids from the avian influenza viruses. Viruses with ... Influenza viruses have a relatively high mutation rate that is characteristic of RNA viruses. The H5N1 virus has mutated into a ... Such mutations in avian H5N1 viruses can change virus strains from being inefficient at infecting human cells to being as ...
*  Feline viral rhinotracheitis
The virus is shed for one to three weeks postinfection. Latently infected cats (carriers) will shed FHV-1 intermittently for ... Viremia (the presence of the virus in the blood) is rare. The virus is shed in saliva and eye and nasal secretions, and can ... life, with the virus persisting within the trigeminal ganglion. Stress and use of corticosteroids precipitate shedding. Most ... Most household disinfectants will inactivate FHV-1. The virus can survive up to 18 hours in a damp environment, but less in a ...
*  Bovine viral diarrhea
1998). Prolonged nasal shedding and viraemia of cytopathogenic bovine virus diarrhoea virus in experimental late-onset mucosal ... In PIs the virus remains present in a large number of the animal's body cells throughout its life and is continuously shed. PIs ... PI animals recognise intra-cellular BVD viral particles as 'self' and shed virus in large quantities throughout life; they ... Ncp viruses can induce persistent infection in cells and have an intact NS2/3 protein. In cp viruses the NS2/3 protein is ...
*  Falcon adenovirus A
... the enlargement of the spleen To allow screening of captive birds for virus shedding and investigations of disease outbreaks, ... The virus was first discovered in 1996 in an epizootic of inclusion body hepatitis and enteritis in aplomado and peregrine ... Testing for serum neutralizing antibodies can also be used to identify if a bird has been infected by the virus. Transmission ... As falcon adenovirus A infects falcons found throughout North America, the virus likely has a large geographic distribution. ...
*  Scientific research on the International Space Station
Incidence of Latent Virus Shedding During Space Flight (Latent_Virus) Advanced Diagnostic Ultrasound in Microgravity (ADUM) ... NASA Incidence of Latent Virus Shedding During Space Flight (Latent_Virus) (ISS Experiment) - NASA Advanced Diagnostic ... NASA Space Flight Induced Reactivation of Latent Epstein-Barr Virus (Epstein-Barr) (ISS Experiment) - NASA Validation of ... Space Flight Induced Reactivation of Latent Epstein-Barr Virus (Epstein-Barr) Validation of Procedures for Monitoring ...
*  Pacheco's disease
These persistently infected birds, often Macaws, Amazon parrots and some species of conures, shed the virus in feces and in ... Outbreaks can occur when stress causes healthy birds who carry the virus to shed it. Birds generally become infected after ... Birds which do not succumb to Pacheco's disease after infection with the virus become asymptomatic carriers that act as ... August 2006). "Psittacid herpesvirus 1 and infectious laryngotracheitis virus: Comparative genome sequence analysis of two ...
*  Lymphocytic choriomeningitis
Once infected, these mice can become chronically infected by maintaining virus in their blood or persistently shedding virus in ... Symptoms in hamsters are highly variable, and typically indicate that the pet has been infected and shedding the virus for ... However, other strains of this virus ( Junin and Machupo viruses) are present in parts of South America and other strains ... Understanding the biology of the LCMV model virus will help in advancing the understanding of this important class of viruses ...
*  Porcine parvovirus
During acute infection the virus is shed by various routes, including semen, and the isolation of PPV from semen of naturally ... The ubiquity of PPV also raises the possibility that some pigs are persistently infected and at least periodically shed virus. ... leukopenia sometime within 10 days after initial exposure to the virus. PPV and other structurally similar viruses have been ... The virus was isolated from a testicle of a boar 5 days after it was injected into the boar's prepuce and from testicles of ...
*  Poliovirus
Virus is shed in the feces of infected individuals. In 95% of cases only a primary, transient presence of viremia (virus in the ... and allowing the virus to infect nervous tissue. The mutation rate in the virus is relatively high even for an RNA virus with a ... Medicine portal Viruses portal ICTVdb virus classification 2006 Home of Picornaviruses (latest updates of species, serotypes ... The synthetic virus was able to replicate, infect, and cause paralysis or death in mice. However, the synthetic version was ...
*  Feline calicivirus
Infected cats usually shed the virus for two weeks. Following this period, infected cats never shed the virus again or become ... However, FCV is very contagious, and latently infected cats will continue to shed viruses, so complete control is difficult. An ... It is also used in general Caliciviridae research due to its being one of the few of that group of viruses that grows well in ... It also contains a strain of the traditional FCV virus. Since VS-FCV has arisen from variant strains of FCV, it is not certain ...
*  Influenza prevention
Children are much more infectious than adults and shed virus from just before they develop symptoms until two weeks after ... However, if the virus is present in mucus, this can protect it for longer periods. Avian influenza viruses can survive ... The length of time the virus will persist on a surface varies, with the virus surviving for one to two days on hard, non-porous ... As the influenza virus can persist outside of the body, it can also be transmitted by contaminated surfaces such as banknotes, ...
*  Human cytomegalovirus
The shedding of virus can occur intermittently, without any detectable signs or symptoms. CMV infection can be demonstrated ... Lytically replicating viruses disrupt the cytoskeleton, causing massive cell enlargement, which is the source of the virus' ... After infection, the virus remains latent in lymphocytes in the body for the rest of the person's life. Overt disease rarely ... A virus culture can be performed at any time the patient is symptomatic. Laboratory testing for antibody to CMV can be ...
*  Bovine herpesvirus 1
The virus sheds in such high titers that it will spread rapidly throughout a herd. Even though cattle might not be showing ... bovine virus diarrhoea virus, and bovine herpes virus 1". Vet. Parasitol. 190 (1-2): 43-50. doi:10.1016/j.vetpar.2012.05.021. ... Shedding begins from the nasal mucosa as soon as infection occurs, and the virus has replicated in the upper respiratory tract ... Like other herpesviruses, BoHV-1 causes a lifelong latent infection and sporadic shedding of the virus. The sciatic nerve and ...
*  Herpes simplex virus
... (HSV)-2 is periodically shed in the human genital tract, most often asymptomatically. Most sexual ... adenovirus simian virus 40, vaccinia virus, reovirus, poliovirus and herpes simplex virus. When HSV particles are exposed to ... They can be spread when an infected person is producing and shedding the virus. In simple terms, herpes simplex 1 is most ... In an outbreak, the virus in a nerve cell becomes active and is transported via the neuron's axon to the skin, where virus ...
*  Equine influenza
Horses that become immune may not show signs but will still shed the virus. An 1872 report on equine influenza describes the ... The equine-1 virus affects heart muscle, while the equine-2 virus is much more severe and systemic. The virus is spread by ... Subclinically affected vaccinated horses can shed live virus and represent a threat to unvaccinated or inappropriately ... Equine influenza is caused by several strains of the influenza A virus endemic to horses. Viruses that cause equine influenza ...
*  Henipavirus
... of the animals are shedding live virus. In June and July nearly 30% animals have been reported to be shedding live virus. ... SARS coronavirus, Australian bat lyssavirus, Menangle virus and probably Ebola virus and Marburg virus are also harbored by ... the source of the human case from which Nipah virus was first isolated. Nipah virus is one of several viruses identified by WHO ... Urine sampling in flying fox camps indicate that a larger proportion of flying foxes than usual are shedding live virus. ...
*  Pseudorabies
The modified live virus replicates at the site of injection and in regional lymph nodes. Vaccine virus is shed in such low ... The virus is shed in the saliva and nasal secretions of swine infected by the respiratory route. Aerosolization of the virus ... Viruses portal Animal viruses Virology Fenner, Frank J.; Gibbs, E. Paul J.; Murphy, Frederick A.; Rott, Rudolph; Studdert, ... Overview of the virus and its applications in neuroscience Animal viruses. ...
*  Diseases of poverty
January 1997). "Genital shedding of human immunodeficiency virus type 1 DNA during pregnancy: association with ... AIDS is a disease of the human immune system caused by the human immunodeficiency virus (HIV). Primary modes of HIV ... Borkow G, Bentwich Z (May 2002). "Host background immunity and human immunodeficiency virus protective vaccines, a major ... increases viral shedding in the birth canal, which also increases risk of mother-to-child transmission. Without these vital ...
*  Bolivian hemorrhagic fever
Infected animals are asymptomatic and shed the virus in excreta, thereby infecting humans. Evidence of person-to-person ... BHF was first identified in 1963 as an ambisense RNA virus of the Arenaviridae family, by a research group led by Karl Johnson ... In November 2011, a SEDES expert involved in a serosurvey to determine the extent of Machupo virus infections in the Department ... Although there are no cures or vaccine for the disease, a vaccine developed for the genetically related Junín virus which ...