Older individuals may be more susceptible to the flu, but why? The team suspects that the buildup of prostaglandin E2, PGE2, is yet another marker of a biological process called senescence, which is often seen with age and can be one of the causes of older individuals being more susceptible to the flu. The study, led by first author Judy Chen, and the rest of their team, investigates why cells called alveolar macrophages appear to be compromised as you age.
