2019
DOI: 10.1186/s13071-019-3744-9
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Potential impact of climate change on the geographical distribution of two wild vectors of Chagas disease in Chile: Mepraia spinolai and Mepraia gajardoi

Abstract: Background Mepraia gajardoi and Mepraia spinolai are endemic triatomine vector species of Trypanosoma cruzi, a parasite that causes Chagas disease. These vectors inhabit arid, semiarid and Mediterranean areas of Chile. Mepraia gajardoi occurs from 18° to 25°S, and M. spinolai from 26° to 34°S. Even though both species are involved in T. cruzi transmission in the Pacific side of the Southern Cone of South America, no study has modelled their distributions at a regional scale. Therefore, the aim … Show more

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Cited by 33 publications
(33 citation statements)
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References 79 publications
(109 reference statements)
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“…In Chile, two species of marsupials of the Order Didelphimorphia have been described [ 28 ]. The distribution of the endemic insectivorous species, Thylamys elegans , overlaps with the geographic distribution of M. spinolai and T. infestans [ 10 , 12 , 13 , 28 ]. Studies of T. cruzi infection in T. elegans have shown a high variability, from the complete absence of infection when assessed by optical microscopy, serology (indirect hemagglutination; IHA, hereafter), and/or xenodiagnosis (XD, hereafter) [ 29 , 30 ], to a range of 28.6–50.0% of infection by cPCR on blood [ 14 , 17 , 31 , 32 , 33 , 34 ].…”
Section: Resultsmentioning
confidence: 99%
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“…In Chile, two species of marsupials of the Order Didelphimorphia have been described [ 28 ]. The distribution of the endemic insectivorous species, Thylamys elegans , overlaps with the geographic distribution of M. spinolai and T. infestans [ 10 , 12 , 13 , 28 ]. Studies of T. cruzi infection in T. elegans have shown a high variability, from the complete absence of infection when assessed by optical microscopy, serology (indirect hemagglutination; IHA, hereafter), and/or xenodiagnosis (XD, hereafter) [ 29 , 30 ], to a range of 28.6–50.0% of infection by cPCR on blood [ 14 , 17 , 31 , 32 , 33 , 34 ].…”
Section: Resultsmentioning
confidence: 99%
“…In Chile, seven species of even-toed ungulates have been described, including camelids and deers [ 28 ]. Five of these species might overlap with the geographic distribution of the Mepraia species and T. infestans [ 10 , 12 , 13 , 28 ], and two of them are domesticated camelids ( Lama glama and Vicugna pacos ) closely related to people from rural areas [ 28 ]. Serological studies of T. cruzi infection in the camelids L. glama and V. pacos have shown evidence of infection.…”
Section: Resultsmentioning
confidence: 99%
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“…The distribution models generated in this study, based only on climatological variables, assess the effect of climate change on the current and future distribution of OWSF. Several publications have used only the climatic variables for this purpose [54][55][56][57][58][59] . Incorporating other environmental variables such as human population, land cover, vegetation index, host animal distribution, etc, could improve the resultant models.…”
Section: Discussionmentioning
confidence: 99%