Antigenic Components of Group A Arbovirus Virions

Antigenic components of group A arbovirus virions.

Three group A arboviruses, Sindbis (SIN), western (WEE) and eastern equine encephalitis (EEE), were selectively degraded with a nonionic detergent to yield a core particle and a soluble envelope component. Antigenic analysis by using radioimmune precipitation techniques revealed marked antigenic similarity among the core particles of the three viruses. The soluble envelope component exhibited a...

Experimentally induced alterations in antigenic properties of an arbovirus serotype.

Antigenic properties of Getah virus were monitored during 80 serial passages in Vero tissue cultures. The parent virus lost its serotype identity by passage 80. A clone derived from the parent remained antigenically stable during passage. The experimentally induced antigenic alterations in Getah virus were attributable to the tissue culture host selection of constituent subpopulations of virus ...

Carbohydrate components of influenza C virions.

The carbohydrate components of influenza C virions grown in chicken kidney (CK) cells were analyzed by gel filtration following exhaustive digestion with Pronase. The [(3)H]glucosamine-labeled glycopeptides were larger and more heterogeneous than those of influenza A/WSN virions; three major size classes (G(1), G(2), and G(3)) were resolved. Treatment with Vibrio cholerae neuraminidase caused a...

Arbovirus infection increases with group size.

Buggy Creek (BCR) virus is an arthropod-borne alphavirus that is naturally transmitted to its vertebrate host the cliff swallow (Petrochelidon pyrrhonota) by an invertebrate vector, namely the cimicid swallow bug (Oeciacus vicarius). We examined how the prevalence of the virus varied with the group size of both its vector and host. The study was conducted in southwestern Nebraska where cliff sw...

Antigenic Studies of a Group of Paracolon Bacteria (Bethesda Group).