from the always-buy-name-brand dept.
sciencehabit writes "Whooping cough, or pertussis, has exploded in the United States in recent years. A new study (abstract) confirms what scientists have suspected for some time: The return of the disease is caused by the introduction of new, safer vaccines 2 decades ago. Although they have far fewer side effects, the new shots don't offer long-lived protection the way older vaccines do."
"What is wanted is not the will to believe, but the will to find out, which is
the exact opposite."
-- Bertrand Russell, _Sceptical_Essays_, 1928