| pertussis vaccine | 0.99 | Another type of pertussis vaccine is used after that age, she said. | ||
| pertussis bacterium | 0.46 | This vaccine uses a whole cell of pertussis bacteria that is inactivated, usually with heat. |
| pertussis vaccine | 0.99 | Another type of pertussis vaccine is used after that age, she said. | ||
| pertussis bacterium | 0.46 | This vaccine uses a whole cell of pertussis bacteria that is inactivated, usually with heat. |