Why Pertussis is Making a Comeback
By RONI CARYN RABIN
Cases of whooping cough in the U.S. have spiked in recent years. The newer vaccine is not as effective as the old one, but it has fewer side effects.
Published: February 21, 2016 at 07:00PM
from NYT Health http://ift.tt/1XIwnjl
Why Pertussis is Making a Comeback RONI CARYN RABIN Cases of whooping cough in the U.S. have spiked in recent years. The newer vaccine is not as effective as the old one, but it has fewer side effects. http://ift.tt/1XIwnjl http://ift.tt/1PSJNGu Health The New York Times February 21, 2016 at 07:00PM