Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
Rate of B. pertussis infections in adolescents and adultsa
| Author (reference) | Location | Yr | Annual rate (%) |
|---|---|---|---|
| Deville et al. (206) | Los Angeles, Calif. | 1984-1989 | 8 |
| Cromer et al. (184) | Columbus, Ohio | 1985-1990 | ∼1 |
| Hodder et al. (354) | Cleveland, Ohio | 1989-1992 | 3 |
| Ward et al., submitted | Eight U.S. cities | 1997-1999 | 1.3 |
Infections were determined by the demonstration of a significant rise in serum antibody titer to PT in successive serum samples.
