Brote de malaria en relación con un conglomerado de casos importados en una zona fronteriza, Perú.

Background: Malaria is transmitted by the bite of mosquitoes which belong to the genus Anopheles. The Tumbes region, located in the northern border of Peru, despite the permanent presence of the vector, was free from malaria transmission, and there are only sporadic imported cases. Material and Methods: A case series study of an outbreak of malaria caused by P. vivax associated with a conglomerate of imported cases was carried out in the context of massive Venezuelan migration to Peru. Results: The control activities implemented through the modified epidemiological fence methodology to control the reintroduction of the disease are described; transmission of the outbreak related to Venezuelan migrants in transit was detected. Conclusions: the reintroduction of malaria in the Tumbes region was related to cases imported from Venezuela. The modified epidemiological fences made it possible to improve the collection of cases in situ. [ABSTRACT FROM AUTHOR]