"Children who aren't immunized on time are at greatly increased risk for pertussis compared to kids who are vaccinated on time," said lead researcher Jason Glanz, at the Institute for Health Research at Kaiser Permanente Colorado, in Denver.
SOURCES: Jason Glanz, Ph.D., Institute for Health Research, Kaiser Permanente Colorado, Denver; Bruce Hirsch, M.D., attending physician, division of infectious diseases, North Shore University Hospital, Manhasset, N.Y.; Len Horovitz, M.D., pulmonary specialist, Lenox Hill Hospital, N
