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On 14 July 2023, the Ministry of Health of the Republic of Congo notified WHO regarding a cluster of cases of unknown etiology in Dolisie City, Niari Department.
The notification followed an observed increase in persons presenting at local health facilities in the city with signs and symptoms of fever, abdominal pain, headache, vertigo, anorexia, asthenia, diarrhea, and vomiting.
The index case in this cluster was registered on 28 June 2023.
From 28 June to 29 July 2023, a cumulative total of 1,689 cases with 37 deaths (case fatality ratio 2.2%) have been reported from five departments (Niari, Pointe Noire, Bouenza, Kouilou, and Brazzaville) in the country.
Based on clinical diagnosis and laboratory investigations, the cases have been disaggregated according to disease conditions as follows: shigellosis (919 cases), typhoid fever (705 cases), and cholera (65 cases).
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Dolisie City in Niari department remains the epicentre of the outbreaks, reporting 93.8% (n = 61) of the cholera cases, 98.0% (n =901) of shigellosis cases, and 95.9% (n = 649) of typhoid fever cases.
Following the release of the results of laboratory investigation and clinical examinations, the Ministry of
Health of the Republic of Congo officially declared a concurrent outbreak of cholera, shigellosis, and typhoid fever in the country on 17 July 2023.
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