Tdap, sometimes known as dTap, is the acronym for the collective vaccines preventing tetanus, diphtheria, and pertussis in adolescents and adults that were licensed in the United States in spring of 2005.

In reaching its verdict Wednesday, the seven-member jury rejected Wyeth's assertion that the child suffered a stroke before inoculation with the vaccine, which is used to prevent diphtheria, pertussis and tetanus.

The nine vaccines include some regularly given to millions of American children, including common vaccines to prevent polio, diphtheria and tetanus.

Workers from another aid group gave his screaming children vaccinations to prevent diphtheria and measles.

In 1893 Dr Herman M. Biggs, Chief Inspector, New York Board of Health offered Park a position within the municipal laboratories to work to prevent diphtheria.

"Surely the antitoxin [he hadn't the faintest notion what the chemistry of this mysterious stuff was] certainly it will prevent diphtheria," said Behring.

Pertussis vaccine is one component of the familiar "DTP" series given to children to prevent whooping cough as well as diphtheria and tetanus.

MassBiologics has introduced into general use vaccines to prevent typhus, smallpox, pertussis, tetanus, diphtheria and other diseases.

The diphtheria, pertussis and tetanus (DPT) vaccine can prevent diphtheria, but its protection does not last forever.

The vaccines are standard: one prevents diphtheria, tetanus and whooping cough, and the other measles, mumps and German measles.