Pertussis outbreak ends school year for 13 in Londonderry Students that haven't been immunized against pertussis (whooping cough) are being asked to stay home after an outbreak of the communicable disease was confirmed at Londonderry Middle School this week.
June 19, 2013 - New Hampshire Union Leader
Londonderry students who haven't had whooping cough vaccine asked to stay home LONDONDERRY - Students who haven't been immunized against pertussis (whooping cough) are being asked to stay home after an outbreak of the communicable disease was confirmed at Londonderry Middle School this week.
June 18, 2013 - New Hampshire Union Leader