As vaccines go, the flu shot is no exemplar. A comprehensive new review of the research, published online by The Lancet Infectious Diseases, finds that the vaccine prevented illness in 59% of adults aged 18 to 64, and in eight of 12 flu seasons studied.
LONDON - One of the grimmest legacies of the war in the Pacific is still being fought 70 years on, but a victory over dengue, the intensely painful "breakbone fever" which that conflict helped spread around the world, may be in sight. The U.S.