We may be in the middle of summer, but now is the time to get your kids their back-to-school vaccines.
A new study by Kaiser Permanente Health shows another childhood vaccine - for whooping cough - isn't protecting as well as expected, and that it loses effectiveness over time.
Public health officials are investigating an outbreak of whooping cough in central Delaware.
Four more cases of whooping cough have been identified in the Radnor Township School District.
Two cases of the illness, medically known as pertussis, have been confirmed at Souderton Area High School in Souderton. Both infected students are 9th graders.
Montgomery County health officials have confirmed a case of whooping cough at an area high school.