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Generic protocol to estimate the burden of Shigella diarrhoea and dysenteric mortality. Field test version, May 1999.
Geneva, Switzerland, World Health Organization [WHO], Department of Vaccines and Biologicals, 1999. 37 p. (WHO/V&B/99.26)The WHO Department of Vaccines and Biologicals (V&B) has an increasing interest in vaccines against Shigella, and several candidate vaccines are being tested in clinical trials. The promise of having a new generation of vaccines available in the relatively near future emphasizes the need to understand the disease burden and the epidemiology of Shigella infection in developing countries. The V&B Steering Committee on Epidemiology and Field Research and the V&B Steering Committee on Diarrhoeal Disease Vaccines jointly identified the need for a practical method for immunization programme managers and clinical epidemiologists to assess the local disease burden due to Shigella. At the request of these Steering Committees, this generic protocol was prepared by staff at the U.S National Institute of Child Health and Human Development, the University of Maryland, and the U.S. Centers for Disease Control and Prevention. This protocol provides a general outline for a study and describes the main procedures involved. However, it will need to be adapted to the local setting, and details of field work and operational procedures should be added by local investigators with experience in conducting field studies of diarrhoeal diseases. WHO provides this protocol free-of-charge. In return, WHO would appreciate being informed about studies conducted using this protocol. This WHO document should be referenced in any publication resulting from its use. Comments or suggestions for improving this generic protocol are welcome and should be sent to the Department of Vaccines and Biologicals, WHO, 1211 Geneva 27, Switzerland. (excerpt)