Clinically silent Plasmodium vivax infections in native Amazonians of northwestern Brazil: acquired immunity or low parasite virulence?
Luiza Barbosa BarrosPriscila Rodrigues CalilPriscila Thihara RodriguesJuliana ToniniPablo Secato FontouraPriscila Moraes SatoMarly Augusto CardosoMarina Werneck de Almeida Avellar RussoCarlos Eduardo CavasiniAnderson Rocha de Jesus FernandesMarcelo Urbano FerreiraPublished in: Memorias do Instituto Oswaldo Cruz (2022)
Our findings are at odds with the hypothesis of age-related clinical immunity in native Amazonians. The low virulence of local parasites is suggested as an alternative explanation for subclinical infections in isolated populations.