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Volume 9, Number 5—May 2003

Estimating the Incidence of Typhoid Fever and Other Febrile Illnesses in Developing Countries

John A. Crump*Comments to Author , Fouad G. Youssef†, Stephen P. Luby*, Momtaz O. Wasfy†, Josefa M. Rangel*, Maha Taalat†, Said A. Oun‡, and Frank J. Mahoney*†
Author affiliations: *Centers for Disease Control and Prevention, Atlanta, Georgia, USA; †U.S. Naval Medical Research Unit No. 3, Cairo, Egypt; ‡Ministry of Health and Population, Cairo, Egypt

Main Article


Incidence estimates for typhoid fever and brucellosis, Bilbeis District, Egypt, 2001

Disease No. of cases captured by surveillance site type
Crude (adjusteda)
Test sensitivity multiplier Seasonality multiplier Total cases Incidence
Fever hospital) Fever specialist Primary provider Total
Typhoid fever
6.0 (6.0)
13.0 (13.0)
19.0 (19.0)
Brucellosis 15.0 (15.0) 12.0 (12.0) 4.0 (27.2) 31.0 (54.2) 1.0 2.2 119.2 18.0

aAdjusted for health provider sampling scheme. No multiplier is applied for cases identified at the fever hospital and among fever specialists. A multiplier of 6.8 is applied for cases identified among primary providers.

Main Article

Page created: December 08, 2010
Page updated: December 08, 2010
Page reviewed: December 08, 2010
The conclusions, findings, and opinions expressed by authors contributing to this journal do not necessarily reflect the official position of the U.S. Department of Health and Human Services, the Public Health Service, the Centers for Disease Control and Prevention, or the authors' affiliated institutions. Use of trade names is for identification only and does not imply endorsement by any of the groups named above.