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. 2021 Oct 9;2(4):490–501. doi: 10.3390/epidemiologia2040034

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© 2021 by the authors.

Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).

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Transmission chains of the first two imported cases of COVID-19 in Amazonas, Peru. (A) Imported case of a policeman traveling from Lambayeque to Bagua. (B) Imported case of a lawyer traveling from San Martin to Bagua. Circles represent individuals. Arrows represent the direction of transmission. Sky blue, purple, and pink represent Bagua, Chachapoyas, and Bongara cases, respectively. Fuchsia color represents the primary imported case. Information in circles shows the date of symptoms onset. A, asymptomatic.