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Human polyomavirus 2, commonly referred to as the JC virus or John Cunningham virus, is a type of human polyomavirus (formerly known as papovavirus). [3] It was identified by electron microscopy in 1965 by ZuRhein and Chou, [ 4 ] and by Silverman and Rubinstein.
The test is automatically done on all samples testing positive or equivocal for La Crosse Virus IgM antibodies by ELISA. In 2010 CDC developed an ELISA also for JCV IgM . Similarly, the New York State Department of Health has performed JCV plaque reduction neutralization tests since 2000 on samples positive for California serogroup IgG antibodies.
Biogen Idec and Elan Submit Applications for First-Line Use of TYSABRI in anti-JCV Antibody Negative Patients with MS - Marketing Applications Supported by Risk Stratification Data - WESTON, Mass ...
The cause of PML is a type of polyomavirus called the JC virus (JCV), after the initials of the person (John Cunningham) from whose tissue the virus was first successfully cultured. Publications indicate 39 [ 3 ] to 58% [ 4 ] of the general population are seropositive for antibodies to JCV, indicating current or previous infection with the virus.
Viracor-IBT was created through the merger of two specialty diagnostic testing labs, Viracor Laboratories and IBT Laboratories. [2] Founded by Dr. Konstance Knox and Dr. Donald Carrigan in Milwaukee County in 2000, Viracor was among the first to commercially offer real-time quantitative PCR assays to diagnose patients with Adenovirus, BK virus and JC virus, among others.
The plaque reduction neutralization test is used to quantify the titer of neutralizing antibody for a virus. [1] [2] The serum sample or solution of antibody to be tested is diluted and mixed with a viral suspension. This is incubated to allow the antibody to react with the virus. This is poured over a confluent monolayer of host cells.
Polyomaviridae is a family of viruses whose natural hosts are primarily mammals and birds. [1] [2] As of 2024, there are eight recognized genera. [3]Fourteen species are known to infect humans, while others, such as Simian Virus 40, have been identified in humans to a lesser extent.
An HIV antibody test usually detects the HIV antibodies within two to eight weeks, but can have a valid negative result for a long as 2 to 6 months after initial infection. Viral load tests can also be used to diagnose HIV infection, especially in children under 18 months born to mothers with HIV, where the presence of maternal antibodies ...