[Well, so far H5N1 is a killer strain almost exclusively in poultry. We must be talking about bird flu in birds.] France is in a flap and has started a mass vaccination programme [that’s in poultry; there’s no
Influenza types A and B are known to cause seasonal flu epidemics annually in the U.S., while RSV is a common respiratory virus that typically causes mild, common-cold-type symptoms — though it can be severe for both young infants and older adults. Abbott said these four viruses share a...