Active focus of Malaria, Caño Mochuelo Indigenous Reserve, Casanare, Colombia 2020-2021.

Foco activo de Malaria, Resguardo Indígena Caño Mochuelo, Casanare, Colombia 2020 – 2021.

Casanare in Orinoquia region of Colombia, have few report of cases of malaria. From epidemiological week 28 to 49 of 2020, 77 cases were reported. 61% men, 9% migrants. 2.6% severe malaria, lethality: 1.3% (1/77), mortality: 0.06 / 100,000 inhabitants. In week 3 to 13 of 2021, 51 cases were reported from the same area. Objective. To characterize the eco-epidemiological situation of a malaria focus. Materials and methods. Descriptive study: epidemiological analysis (annual parasite index-API, mortality rate, lethality), verification to access to health care and entomological study. Results. In 2021, the observed cases exceeded those expected (51 vs 7), (p = 0.000). 51% women. 32% from childhood to adolescence, 25% youth, 39% adults, 4% seniors, colombians. From nine indigenous communities. API in 2020 and 2021 was 0.18 and 0.12. In the diagnostic verification of the thick blood film, it was suggested to retrain the operating personnel. Anopheles braziliensis, A. darlingi, A. marajoara and A. oswaldoi were identified. The higher peak biting activity of A. darlingi was between 21:00 to 22:00. The most mosquitoes were captured in the indoor. 340 homes fumigated. 500 insecticide treated net were given. Conclusion. Receptive focus stratum 4 is confirmed. It is required to prioritize the malaria with surveillance, prevention and control actions.

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