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- W4212937031 abstract "Abstract Background: Leishmaniasis is a human and animal disease caused by parasites of the genus Leishmania , which is now divided into 4 subgenera – L. (Leishmania) , L. (Viannia) , L. (Sauroleishmania) and L. (Mundinia) . Subgenus Mundinia, established in 2016, is geographically widely dispersed, its distribution covers all continents, except Antarctica. It consists of 5 species - L. enriettii and L. macropodum are parasites of wild mammals while L. martiniquensis , L. orientalis and unnamed L . sp. from Ghana are infectious to humans. There is very little information on natural reservoir hosts and vectors for any Mundinia species. Methods: Experimental infections of guinea-pigs with all five Mundinia species were performed. Animals were injected intradermally with 10 7 culture-derived promastigotes into both ear pinnae. The courses of infections were monitored weekly; xenodiagnoses were performed at weeks 4 and 8 post infection using Lutzomyia migonei . The distribution of parasites in different tissues was determined post mortem by conventional PCR. Results: No significant differences in weight were observed between infected animals and the control group. Animals infected with L. enriettii developed temporary lesions at the site of inoculation and were infectious to Lu. migonei in xenodiagnoses. Animals infected with L. martiniquensis and L. orientalis developed temporary erythema and dry lesions at the site of inoculation, respectively, but were not infectious to sand flies. Guinea pigs infected by L. macropodum and L . sp . from Ghana showed no signs of infection during experiments, were not infectious to sand flies and leishmanial DNA was not detected in their tissue samples at the end of experiments at week 12 post-inoculation. Conclusions: According to our results, guinea pigs are not an appropriate model organism for studying Mundinia species other than L. enriettii. We suggest that for better understanding of L. (Mundinia) biology it is necessary to focus on other model organisms." @default.
- W4212937031 created "2022-02-24" @default.
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- W4212937031 date "2020-03-24" @default.
- W4212937031 modified "2023-09-28" @default.
- W4212937031 title "Development of Leishmania (Mundinia) in guinea pigs" @default.
- W4212937031 doi "https://doi.org/10.21203/rs.2.19613/v4" @default.
- W4212937031 hasPublicationYear "2020" @default.
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