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Volume 16, Number 2—February 2010

Letter

Human African Trypanosomiasis in Areas without Surveillance

François ChappuisComments to Author , Maria Angeles Lima, Laurence Flevaud, and Koert Ritmeijer
Author affiliations: Médecins sans Frontières, Geneva, Switzerland (F. Chappuis); Geneva University Hospitals, Geneva (F. Chappuis); Médecins sans Frontières, Barcelona, Spain (M.A. Lima, L. Flevaud); Médecins sans Frontières, Amsterdam, the Netherlands (K. Ritmeijer)

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Table

Human African trypanosomiasis control programs run by Médecins sans Frontières in central Africa, January 2007–May 2009*

Location (program dates) No. persons screened
No. (%) new diagnoses
Prevalence, %†
Total Passive Active Total First stage Second stage
Zones de santé of Doruma, Ango and Bili, DRC (2007 Jul–2009 Mar) 46,601 18,559 28,042 1,570 947 (60) 623 (40) 3.4
Batangafo and neighboring villages, CAR (2007 Jan–2009 Apr) 34,502 3,905 30,597 1,074 380 (35) 694 (65) 3.1

*DRC, Democratic Republic of Congo; CAR, Central African Republic.
†Total no. patients with parasitologically confirmed human African trypanosomiasis (total no. new diagnoses) divided by total no. persons screened during the period of first-round active screening (total no. persons screened).

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