Odds ‘n Sods:
Reader C.W. forwarded some very scary news: Perhaps just one mutation away from fast transmission human to human transmission? H7N9 Carries Genes from Rare H9N2, H7N3, H4N9, H11N9 Bird Flu Viruses. Here is a quote: “This finding implies that H7N9 viruses have partially acquired human receptor-binding specificity. All of the H7N9 human isolates examined contained a lysine residue at position 627 in the PB2 protein. It is well known that this lysine residue contributes to the replication and transmission of avian influenza viruses in mammalian hosts. It is likely that the acquisition of this lysine in H7N9 viruses during their …