A viral mashup in snakes
…of two distinct arenaviruses. One virus, called CASV (California Academy of Sciences virus) was found in diseased annulated tree boas, and the second, GGV (Golden Gate virus) was detected in…
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Ebola virus enters the United States
Image credit: ViralZone Given the extent of the Ebola virus outbreak in West Africa, transport of an infected individual to the US was bound to happen. The case is an…
A WORD on the constraints of influenza virus evolution
…the nucleoprotein (NP) of influenza virus. Between 1968 and 2007, 39 mutations appeared in the NP RNA of influenza virus H3N2. Because sequences of this viral RNA are available each…
Polyomavirus JC, multiple sclerosis, Tysabri, and an anti-malaria drug
…polyomavirus JC. The virus multiplies in and destroy oligodendrocytes, which are cells of the brain that produce the myelin sheath surrounding neurons. JCV was identified in 1971 by inoculation of…
Blocking virus infection with soluble cell receptors
…viruses still enter cells by binding to CD155, but the affinity of virus for the receptor is reduced. Poliovirus srr mutants replicate normally in cell cultures, and cause paralysis in…
Are the bees vanishing?
…new problems: Varroa mites – which vector virus Tracheal mites – which clog the breathing tubes Several virus’ – probably more than we know about Nosema ceranae, a microsporidian –…