This file photo shows an empty bottle of Tetanus, Diphthera and Pertussis, (whooping cough) vaccine.
This file photo shows an empty bottle of Tetanus, Diphthera and Pertussis, (whooping cough) vaccine. Rich Pedroncelli AP file, 2011
This file photo shows an empty bottle of Tetanus, Diphthera and Pertussis, (whooping cough) vaccine. Rich Pedroncelli AP file, 2011