• vectors
  • The maximum activity of sandfly vectors for TOSV occurs during summer, along with most cases of TOSV infection ( 7 ). (cdc.gov)
  • The report stated that this outbreak is the first detected in a metropolitan setting, and expressed concern that the disease might be adapting to urban species of mosquito vectors, which would make it a risk for spreading within the country. (wikipedia.org)
  • Though the reason for the pandemic is unknown, dengue, a related arbovirus that infects the same species of mosquito vectors, is known in particular to be intensified by urbanization and globalization. (wikipedia.org)
  • arboviral disease
  • Surveillance programs in 18 states detected enzootic arboviral activity in mosquito or sentinel or wild bird populations, and cases of arboviral disease were recognized among horses or emus in 24 states. (cdc.gov)
  • Although arboviral disease cases among horses or other animals are not officially reported to CDC, some state health departments attempt to track such cases because cases of EEE and WEE in horses may indicate incipient human cases. (cdc.gov)
  • Globally, dengue is most common arboviral disease, with 40% of the world's population living in areas with dengue virus transmission. (cdc.gov)
  • species
  • Though many species of birds are known to contract WNV, species in the Corvid family (crows, ravens, and jays) are more susceptible to the disease and are therefore useful geographic detectors of West Nile virus. (utah.gov)
  • In 1956, serological testing suggested an unknown new species of alphavirus (group A arbovirus) was the likely culprit. (wikipedia.org)
  • virus
  • Dengue virus infection is the leading cause of hospitalization and death in children of most tropical Asian countries. (clinicaltrials.gov)
  • West Nile virus (WNV) is the most important of several mosquito transmitted viruses (arboviruses) now native to the U.S. A major part of CDC's ongoing work is disease tracking, laboratory studies, education, and technical assistance and response. (cdc.gov)
  • DVBD scientists have helped to discover several novel tick-borne diseases in the U.S. In 2012, a new, sometimes fatal tick-borne disease, Heartland virus, was discovered in Missouri. (cdc.gov)
  • Herpes simplex virus type 1 is a cause more frequent and severe viral encephalitis. (blogspot.com)
  • Chikungunya virus (CHIKV) is a re-emerging arbovirus responsible for a massive outbreak currently afflicting the Indian Ocean region and India. (pasteur.fr)
  • West Nile virus (WNV) infection is a seasonal epidemic in North America ( 1 ). (cdc.gov)
  • West Nile virus (WNV) is an arbovirus, or arthropod-borne virus, of the flavivirus family. (utah.gov)
  • West Nile virus is one of many mosquito-borne viral infections. (utah.gov)
  • Persons over the age of 50 may be at an increased risk of more severe forms of West Nile virus infection. (utah.gov)
  • Prevention is still the best method of avoiding West Nile virus infection. (utah.gov)
  • Read about our research on virus ecology , mechanisms of disease and intervention strategies . (artemisonehealth.com)
  • LDH is also reporting 19 new West Nile virus infections, of which six were neuroinvasive disease cases, bringing this year's total to 80 reported infections. (louisiana.gov)
  • That's the only way you can be sure that you won't become infected with West Nile virus or any other mosquito-borne diseases. (louisiana.gov)
  • Last year, Louisiana saw 34 cases of West Nile virus neuroinvasive disease in the state, which was down from 2002's high of 204 cases of West Nile virus neuroinvasive disease. (louisiana.gov)
  • Primary encephalitis develops when there is direct infection of the brain from a virus or other infectious agent. (epainassist.com)
  • The word arbovirus is an acronym (ARthropod-BOrne virus). (wikipedia.org)
  • Transmission between the vector and the host occurs when the vector feeds on the blood of the vertebrate, wherein the virus that has established an infection in the salivary glands of the vector comes into contact with the host's blood. (wikipedia.org)
  • Infection with Mayaro virus causes an acute, self-limited dengue-like illness of 3-5 days' duration. (wikipedia.org)
  • The MAYV infection can be confirmed by laboratory testing such us virus isolation, RT-PCR and serology. (wikipedia.org)
  • Chikungunya virus is closely related, producing a nearly indistinguishable, highly debilitating arthralgic disease. (wikipedia.org)
  • Four of the cases experienced mild hemorrhagic (bleeding) symptoms, which had not previously been described in Mayaro virus disease. (wikipedia.org)
  • A study published in 1991 demonstrated that a colonized strain of Brazilian Aedes albopictus was capable of acquiring MAYV from infected hamsters and subsequently transmitting it and a study published in October 2011 demonstrated that Aedes aegypti can transmit MAYV, supporting the possibility of wider transmission of Mayaro virus disease in urban settings. (wikipedia.org)
  • The La Crosse encephalitis virus is a type of arbovirus called a bunyavirus. (wikipedia.org)
  • Intravenous ribavirin is effective against La Crosse encephalitis virus in the laboratory, and several studies in patients with severe, brain biopsy confirmed, La Crosse encephalitis are ongoing. (wikipedia.org)
  • La Crosse encephalitis was discovered in 1965, after the virus was isolated from stored brain and spinal tissue of a child who died of an unknown infection in La Crosse, Wisconsin in 1960. (wikipedia.org)
  • Virus infections usually begin in the peripheral tissues, and can invade the mammalian system by spreading into the peripheral nervous system and more rarely the CNS. (wikipedia.org)
  • Subacute sclerosing panencephalitis Progressive multifocal leukoencephalopathy West Nile Virus can produce aseptic meningitis, encephalitis, and acute flaccid paralysis Poliomyelitis Herpes simplex encephalitis Enteroviral disease Most forms of aseptic meningitis are viral in origin, though neoplastic and lyme meningitis are also aseptic. (wikipedia.org)
  • Human Immunodeficiency Virus Infection (HIV) is treated by using a combination of medications to fight against the HIV infection in the body. (wikipedia.org)
  • Although there is no specific treatment for infection with the Barmah Forest virus, the disease is non-fatal and most infected people recover. (wikipedia.org)
  • This disease is named after the region where it was first discovered and isolated at the Trinidad Regional Virus Laboratory in 1955 by the Oropouche River in Trinidad and Tobago. (wikipedia.org)
  • This virus is a single-stranded, negative sense RNA virus which is the cause of this disease. (wikipedia.org)
  • The mice reveled a high concentration of the replicating virus in the brain along with inflammation of the meninges and apoptosis of neurons without encephalitis, which is inflammation of the brain due to an infection. (wikipedia.org)
  • The oropouche virus spreads through the neural routes during early stages of the infection, reaching the spinal cord and traveling upward to the brain through brainstem with little inflammation. (wikipedia.org)
  • As the infection progresses, the virus crosses the blood-brain barrier and spreads to the brain parenchyma leading to severe manifestations of encephalitis. (wikipedia.org)
  • Other viruses with similar disease symptoms but genetically unrelated include: St. Louis Encephalitis and West Nile Virus. (wikipedia.org)
  • Since then, most cases of encephalitis have been associated with the La Crosse virus, and California encephalitis is a rare cause of disease in the Western World. (wikipedia.org)
  • It then can result in encephalitis, when inflammation of the brain, produced by infection by the virus, damages nerve cells, which affects signaling of the brain to the body. (wikipedia.org)
  • Chikungunya is an infection caused by the chikungunya virus (CHIKV). (wikipedia.org)
  • The virus can be transmitted from an infected pregnant woman to her fetus, then can cause microcephaly and other severe brain anomalies in the infant. (wikipedia.org)
  • Although serologic evidence indicated additional human exposure during subsequent decades in parts of Africa and Asia, before the 2007 Yap Islands Zika virus outbreak, only 14 cases of human Zika virus disease had been documented. (wikipedia.org)
  • Phylogenetic analysis of the first Brazilian infections have strongly indicated that the circulating virus is the Asian, rather than African, strain of the virus, and was genetically similar to the virus found in the outbreak in French Polynesia. (wikipedia.org)
  • CHIKV
  • Cases of severe CHIKV infection involving the central nervous system (CNS) have recently been described in neonates as well as in adults with underlying conditions. (pasteur.fr)
  • The pathophysiology of CHIKV infection and the basis for disease severity are unknown. (pasteur.fr)
  • To address these critical issues, we have developed an animal model of CHIKV infection. (pasteur.fr)
  • We show here that whereas wild type (WT) adult mice are resistant to CHIKV infection, WT mouse neonates are susceptible and neonatal disease severity is age-dependent. (pasteur.fr)
  • In case of severe infections, CHIKV also disseminates to other tissues including the CNS, where it specifically targets the choroid plexuses and the leptomeninges. (pasteur.fr)
  • These data also identify the neonatal phase and inefficient type-I IFN signaling as risk factors for severe CHIKV-associated disease. (pasteur.fr)
  • dengue cases
  • In a prospective study in the outpatients department of three large hospitals in Ho Chi Minh City, Viet Nam, we will determine the early diagnostic sensitivity, specificity, positive and negative predictive values of two NS1 diagnostic tests in severe dengue cases. (clinicaltrials.gov)
  • cases
  • Of the estimated 390 million infections and 100 million cases annually, a small proportion of these cases progress to severe dengue. (cdc.gov)
  • Later, cases of TOSV infections were detected in other areas of Spain ( 15 ). (cdc.gov)
  • LDH issues a weekly Arbovirus Surveillance Report that details cases detected thus far by parish. (louisiana.gov)
  • This week's new infections include six neuroinvasive disease cases in Bossier (1), Caddo (3), East Baton Rouge (1) and St. Tammany (1) parishes. (louisiana.gov)
  • in the United States, about 80-100 LACV disease cases are reported each year, although it is believed to be under-reported due to minimal symptoms experienced by many of those affected. (wikipedia.org)
  • Symptoms include nausea, headache, vomiting in milder cases and seizures, coma, paralysis and permanent brain damage in severe cases. (wikipedia.org)
  • Most people may recover within a few weeks, but the minority can continue to have the symptoms for many months, and in the most severe cases, up to a year. (wikipedia.org)
  • In all three cases there was strong laboratory evidence confirming infection, due to the presence of neutralizing antibodies linked to California encephalitis. (wikipedia.org)
  • Of the three confirmed human cases of CVV disease two resulted in non-fatal meningitis, only the first case caused fatal encephalitis and multiorgan failure. (wikipedia.org)
  • vector
  • CDC scientists develop, test, and deploy innovative disease prevention techniques and work to improve diagnostic testing for vector-borne diseases. (cdc.gov)
  • diagnosis
  • CDC/DVBD plays a unique role, housing much of the world's expertise in the diagnosis, prevention and control of these diseases. (cdc.gov)
  • world's
  • These include some of the world's most destructive diseases, many of which are increasing threats to human health as the environment changes and globalization increases. (cdc.gov)
  • human
  • We aim at undertaking fundamental and applied interdisciplinary research on infectious disease to improve human, animal and ecosystem health. (artemisonehealth.com)
  • The social history of viruses describes the influence of viruses and viral infections on human history. (wikipedia.org)
  • Human infections are strongly associated with exposure to humid tropical forest environments. (wikipedia.org)
  • Existing and emerging viral CNS infections are major sources of human morbidity and mortality. (wikipedia.org)
  • Development of new therapies has been hindered by the lack of appropriate animal model systems for some important viruses and also because of the difficulty in conducting human clinical trials for diseases that are rare. (wikipedia.org)
  • Two discoveries brought cell death from obscurity to a major field of research: identification of components of the cell death control and effector mechanisms, and linkage of abnormalities in cell death to human disease, in particular cancer. (wikipedia.org)
  • clinical
  • Results with inherent mdma does clean the reviews sebaceous clinical handle--slimmer its nongonococcal mathematician gene without disease card without samemy in portland. (nhakhoaminhthu.com)
  • India
  • Smallpox, which is the most lethal and devastating viral infection in history, first emerged among agricultural communities in India about 11,000 years ago. (wikipedia.org)