• Claudio Rojas-Pincheira, Carlos Manterola, Nayely García-Méndez, and Armando Totomoch-Serra.
• Instituto de Salud Pública, Facultad de Medicina, Universidad Austral de Chile, Valdivia, Chile.
• Rev Med Chil. 2022 Jul 1; 150 (7): 944957944-957.

BackgroundKnowledge of the distribution cystic is required for its territorial control.AimTo describe the spatial distribution of Echinococcus granulosus sensu lato genotypes by host in the American continent.Material And MethodsA systematic review of studies from the American continent, related to genotypes of the E. granulosus s.l complex were included, including any host species, without restriction of language or year of publication. Sensitive searches were performed based on sensitive searches from PubMed, EMBASE, ScienceDirect, SCOPUS and WoS; SciELO and BIREME-BVS and Trip Database. MeSH and free terms were used, including articles up to December 2020. Cartography was carried out with the Arc Map 10® program, using a world geodetic system. Result variables sought were genotype, host, geographic location, year of publication, number of samples, genes used for genotyping.ResultsFrom 1123 retrieved studies retrieved, 53 met the inclusion and exclusion criteria. The studies analyzed represent 3,397 samples from humans and animals. Thirty six percent of articles were published in the five-year period 2016-2020. Reports were mainly from Argentina (27.9%), Brazil (20.6%) and Chile (13.2%). The most reported genotypes globally were G1-G3 (47.3%), G7 (15.3%), G5 (14.6%) and G6 (13.3%). A predominance of G1-G3 and G6 genotypes was verified in South America, G8 and G10 in North America, and "epidemiological silence" in Central America and the Caribbean.ConclusionsSpatial analysis allows defining the relationship of territories and cases with their own characteristics, which can help to plan control interventions.

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