Being older is a good defense against 2009 H1N1 influenza virus
Why is the incidence of infection with 2009 H1N1 influenza highest among 5-24 year olds, and lowest in those over 65 years of age? Were the oldsters previously infected with a related influenza virus, or is there another explanation? The sera of individuals born in the early part of the 20th century have antibodies that …
Being older is a good defense against 2009 H1N1 influenza virus Read More »