First confirmed cases of COVID-19 with variant P.1 lineage B.1.1.28 in Leticia, Colombia, 2021

  • Public health surveillance
  • Vaccine preventable diseases
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The P.1 variant of SARS-CoV-2 is of public health interest due to its high transmissibility and affectation to the host's immune response. Through the genomic surveillance strategy implemented in Colombia, the first three cases of this variant were identified in Leticia, Amazonas. The objective of this research was to characterize the first confirmed cases with the P.1 variant in Leticia, Amazonas.

A case study was carried out through the deployment of an immediate response team that carries out field epidemiological research, review of medical records and georeferencing through Google Earth. Confirmed cases of SARS CoV2 infection that were genetically sequenced and a positive result of the P.1 variant, were obtained. Sociodemographic variables were analyzed for the study.

Three positive Covid 19 lineage B.1.1.28 cases were confirmed. The cases were adults, with an average age of 47 years, two women and one man. Two cases made regular trips to the city of Tabatinga in Brazil; an average incubation period of 9 days was considered. Fever was the most common symptom; myalgia, arthralgia, cough, diarrhea and respiratory distress appeared independently. Two cases required hospitalization, one of them was transferred to the intensive care unit due to the need for invasive ventilatory support, with a fatal outcome 2 weeks later.

The first three cases were identified with the P.1 variant, which are not related, one of them died. Finally, the hypothesis of contagion by community circulation is proposed.

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