Potential impact of tuberculosis vaccines as epidemic control agents.

Abstract

We use 2 simple mathematical models (one a preexposure vaccine model and the other a postexposure vaccine model) to provide general insight into the effects of vaccination on tuberculosis epidemics. We discuss how these models can be used as health policy tools: to identify which vaccines are "equivalent," to design control strategies, and to predict the epidemiological impact of different vaccination strategies. Our results show that even moderately effective vaccines could have a significant effect on reducing tuberculosis epidemics if they can be coupled with moderate to high treatment rates. We suggest that both preexposure and postexposure tuberculosis vaccines can be used to help eliminate tuberculosis in developing countries. In developed countries, only a preexposure vaccine (used in combination with a high level of treatment) would be necessary to eliminate tuberculosis.

• Authors: T Lietman, S M Blower
• Journal: Clinical infectious diseases : an official publication of the Infectious Diseases Society of America (Clin Infect Dis) Vol. 30 Suppl 3 Pg. S316-22 (Jun 2000) ISSN: 1058-4838 [Print] United States
• PMID: 10875909 (Publication Type: Journal Article, Research Support, U.S. Gov't, P.H.S., Review)

Chemical References

• BCG Vaccine

Topics

• BCG Vaccine
• Disease Outbreaks (prevention & control)
• Humans
• Models, Biological
• Tuberculosis, Pulmonary (epidemiology, prevention & control)
• Vaccination