IDU See idoxuridine

Ieri virus (IERIV) A species in the genus Orbivirus. There are three recognized serotypes, Ieri virus, Gomoka virus and Arkonam virus. Isolated from mosquitoes in Trinidad and Brazil. Not known to cause disease in humans.

IFA test Indirect fluorescent antibody test, used to detect the presence of virus antigens in clinical specimens. The specimen is initially reacted with a primary antibody that is directed against a specific virus antigen. Binding of the primary antibody is then detected by adding a secondary antibody-fluorochrome conjugate directed against the primary antibody, and after washing the presence of bound antibody in the specimen can be visualized by fluorescence microscopy. The technique is generally more sensitive than labeling the primary antibody itself (direct fluorescent antibody technique) since it multiplies the number of fluo-rochromes per antigen stained resulting in brighter, clearer staining.

Schutzbank TE and McGuire R (2000) In Clinical Virology Manual, edited by S Specter, RL Hodinka and SA Young. Washington: ASM Press, p. 69

Ife virus (IFEV) A tentative species in the genus Orbivirus. Isolated from a bat, Eidolon helvum.

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