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Opportunity or catastrophe? effect of sea salt on host-parasite survival and reproduction.
Yu, Ao; Vannatta, J Trevor; Gutierrez, Stephanie O; Minchella, Dennis J.
Afiliação
  • Yu A; Purdue University, West Lafayette, Indiana, United States of America.
  • Vannatta JT; Purdue University, West Lafayette, Indiana, United States of America.
  • Gutierrez SO; Purdue University, West Lafayette, Indiana, United States of America.
  • Minchella DJ; Purdue University, West Lafayette, Indiana, United States of America.
PLoS Negl Trop Dis ; 16(2): e0009524, 2022 02.
Article em En | MEDLINE | ID: mdl-35202408
Seawater intrusion associated with decreasing groundwater levels and rising seawater levels may affect freshwater species and their parasites. While brackish water certainly impacts freshwater systems globally, its impact on disease transmission is largely unknown. This study examined the effect of artificial seawater on host-parasite interactions using a freshwater snail host, Biomphalaria alexandrina, and the human trematode parasite Schistosoma mansoni. To evaluate the impact of increasing salinity on disease transmission four variables were analyzed: snail survival, snail reproduction, infection prevalence, and the survival of the parasite infective stage (cercariae). We found a decrease in snail survival, snail egg mass production, and snail infection prevalence as salinity increases. However, cercarial survival peaked at an intermediate salinity value. Our results suggest that seawater intrusion into freshwaters has the potential to decrease schistosome transmission to humans.
Assuntos

Texto completo: 1 Base de dados: MEDLINE Assunto principal: Schistosoma mansoni / Biomphalaria Tipo de estudo: Risk_factors_studies Limite: Animals Idioma: En Ano de publicação: 2022 Tipo de documento: Article

Texto completo: 1 Base de dados: MEDLINE Assunto principal: Schistosoma mansoni / Biomphalaria Tipo de estudo: Risk_factors_studies Limite: Animals Idioma: En Ano de publicação: 2022 Tipo de documento: Article