Ancient proteins block modern viruses
Could ancient host proteins contribute to the replication of a modern virus? The answer is, not very well (link to paper). Viruses are obligate intracellular parasites, which means that they…
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A single amino acid change switches avian influenza H5N1 and H7N9 viruses to human receptors
…viruses prefer to attach to sialic acids linked to the second sugar molecule via alpha-2,6 linkages, while avian influenza viruses prefer to bind to alpha-2,3 linked sialic acids. (In the…
Communication between virus-infected cells
…occurs. Because lysogens can divide, the bacterial population can be restored to a level that can sustain virus infection. Of course, the virus particle cannot sense anything – it is…
Viruses and obesity?
…To date eight different viruses have been shown to cause weight gain in animals or humans. These ‘obesogenic’ animal viruses include canine distemper virus (in mice), Rous-associated virus type 7…
Swine flu at Fort Dix
…vaccine formulations from 1955 through 1969 contained a swine influenza component. Competition with concurrent circulating influenza virus strain, A/Victoria, might have limited the impact of A/New Jersey virus which is…
A new coronavirus causing respiratory disease in China
…They are enveloped viruses with a (+) strand RNA genome (pictured). In 2003 SARS coronavirus emerged as the cause of severe respiratory disease. That virus originated in cave-dwelling horseshoe bats…