Low probability of transmission of Trypanosoma cruzi to humans by domiciliary Triatoma sordida in Bolivia

The role of Triatoma sordida in the domestic transmission of Trypanosoma cruzi was assessed in 7 rural localities in Velasco Province, Department of Santa Cruz, Bolivia. Tri. sordida, the only triatomine species identified in these localities, was found inside 58.0% of houses but not in large number...

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Autores principales: Noireau, F., Brenière, F., Ordoñez, J., Cardozo, L., Morochi, W., Gutierrez, T., Bosseno, M.F., Garcia, S., Vargas, F., Yaksic, N., Dujardin, J.P., Peredo, C., Wisnivesky-Colli, C.
Formato: JOUR
Materias:
American trypanosomiasis
Bolivia
Chagas disease
Transmission
Triatoma sordida
Trypanosoma cruzi
Trypanosomiasis
adolescent
adult
animal experiment
animal model
article
chicken
child
disease transmission
dog
housing
human
major clinical study
microscopy
nonhuman
polymerase chain reaction
probability
risk factor
rural area
Triatoma
trypanosomiasis
Animalia
Canis familiaris
Gallus gallus
Insecta
Mammalia
Protozoa
Trypanosoma
Acceso en línea:http://hdl.handle.net/20.500.12110/paper_00359203_v91_n6_p653_Noireau
Aporte de:
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires
id todo:paper_00359203_v91_n6_p653_Noireau
record_format dspace
spelling todo:paper_00359203_v91_n6_p653_Noireau2023-10-03T14:47:33Z Low probability of transmission of Trypanosoma cruzi to humans by domiciliary Triatoma sordida in Bolivia Noireau, F. Brenière, F. Ordoñez, J. Cardozo, L. Morochi, W. Gutierrez, T. Bosseno, M.F. Garcia, S. Vargas, F. Yaksic, N. Dujardin, J.P. Peredo, C. Wisnivesky-Colli, C. American trypanosomiasis Bolivia Chagas disease Transmission Triatoma sordida Trypanosoma cruzi Trypanosomiasis adolescent adult animal experiment animal model article Bolivia chicken child disease transmission dog housing human major clinical study microscopy nonhuman polymerase chain reaction probability risk factor rural area Triatoma Trypanosoma cruzi trypanosomiasis Animalia Canis familiaris Gallus gallus Insecta Mammalia Protozoa Triatoma Triatoma sordida Trypanosoma Trypanosoma cruzi The role of Triatoma sordida in the domestic transmission of Trypanosoma cruzi was assessed in 7 rural localities in Velasco Province, Department of Santa Cruz, Bolivia. Tri. sordida, the only triatomine species identified in these localities, was found inside 58.0% of houses but not in large numbers (3.1 bugs per infested house on average). A total of 220 faecal samples from domiciliary bugs was examined microscopically and by the polymerase chain reaction for the presence of trypanosomes: 21.4% were infected. Analysis of blood meals of domiciliary Tri. sordida showed that humans were the commonest host (70.4%), followed by chickens and dogs. Four of 418 persons tested were seropositive for Tryp. cruzi. Only 2 of a second group of 62 persons living in dwellings infested by Tri. sordida were seropositive. Tryp. cruzi infection was demonstrated in dogs and domestic rats. Three other species of small mammals were found to be infected with trypanosomes. In our study area, domestic Tri. sordida are mainly incriminated in the transmission of Tryp. cruzi to synanthropic animals, whereas transmission to humans is very rare. The presence in houses of small populations of Tri. sordida infected with Tryp. cruzi is therefore currently insufficient for this insect to constitute a major epidemiological risk factor. JOUR info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar http://hdl.handle.net/20.500.12110/paper_00359203_v91_n6_p653_Noireau
institution Universidad de Buenos Aires
institution_str I-28
repository_str R-134
collection Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic American trypanosomiasis
Bolivia
Chagas disease
Transmission
Triatoma sordida
Trypanosoma cruzi
Trypanosomiasis
adolescent
adult
animal experiment
animal model
article
Bolivia
chicken
child
disease transmission
dog
housing
human
major clinical study
microscopy
nonhuman
polymerase chain reaction
probability
risk factor
rural area
Triatoma
Trypanosoma cruzi
trypanosomiasis
Animalia
Canis familiaris
Gallus gallus
Insecta
Mammalia
Protozoa
Triatoma
Triatoma sordida
Trypanosoma
Trypanosoma cruzi
spellingShingle American trypanosomiasis
Bolivia
Chagas disease
Transmission
Triatoma sordida
Trypanosoma cruzi
Trypanosomiasis
adolescent
adult
animal experiment
animal model
article
Bolivia
chicken
child
disease transmission
dog
housing
human
major clinical study
microscopy
nonhuman
polymerase chain reaction
probability
risk factor
rural area
Triatoma
Trypanosoma cruzi
trypanosomiasis
Animalia
Canis familiaris
Gallus gallus
Insecta
Mammalia
Protozoa
Triatoma
Triatoma sordida
Trypanosoma
Trypanosoma cruzi
Noireau, F.
Brenière, F.
Ordoñez, J.
Cardozo, L.
Morochi, W.
Gutierrez, T.
Bosseno, M.F.
Garcia, S.
Vargas, F.
Yaksic, N.
Dujardin, J.P.
Peredo, C.
Wisnivesky-Colli, C.
Low probability of transmission of Trypanosoma cruzi to humans by domiciliary Triatoma sordida in Bolivia
topic_facet American trypanosomiasis
Bolivia
Chagas disease
Transmission
Triatoma sordida
Trypanosoma cruzi
Trypanosomiasis
adolescent
adult
animal experiment
animal model
article
Bolivia
chicken
child
disease transmission
dog
housing
human
major clinical study
microscopy
nonhuman
polymerase chain reaction
probability
risk factor
rural area
Triatoma
Trypanosoma cruzi
trypanosomiasis
Animalia
Canis familiaris
Gallus gallus
Insecta
Mammalia
Protozoa
Triatoma
Triatoma sordida
Trypanosoma
Trypanosoma cruzi
description The role of Triatoma sordida in the domestic transmission of Trypanosoma cruzi was assessed in 7 rural localities in Velasco Province, Department of Santa Cruz, Bolivia. Tri. sordida, the only triatomine species identified in these localities, was found inside 58.0% of houses but not in large numbers (3.1 bugs per infested house on average). A total of 220 faecal samples from domiciliary bugs was examined microscopically and by the polymerase chain reaction for the presence of trypanosomes: 21.4% were infected. Analysis of blood meals of domiciliary Tri. sordida showed that humans were the commonest host (70.4%), followed by chickens and dogs. Four of 418 persons tested were seropositive for Tryp. cruzi. Only 2 of a second group of 62 persons living in dwellings infested by Tri. sordida were seropositive. Tryp. cruzi infection was demonstrated in dogs and domestic rats. Three other species of small mammals were found to be infected with trypanosomes. In our study area, domestic Tri. sordida are mainly incriminated in the transmission of Tryp. cruzi to synanthropic animals, whereas transmission to humans is very rare. The presence in houses of small populations of Tri. sordida infected with Tryp. cruzi is therefore currently insufficient for this insect to constitute a major epidemiological risk factor.
format JOUR
author Noireau, F.
Brenière, F.
Ordoñez, J.
Cardozo, L.
Morochi, W.
Gutierrez, T.
Bosseno, M.F.
Garcia, S.
Vargas, F.
Yaksic, N.
Dujardin, J.P.
Peredo, C.
Wisnivesky-Colli, C.
author_facet Noireau, F.
Brenière, F.
Ordoñez, J.
Cardozo, L.
Morochi, W.
Gutierrez, T.
Bosseno, M.F.
Garcia, S.
Vargas, F.
Yaksic, N.
Dujardin, J.P.
Peredo, C.
Wisnivesky-Colli, C.
author_sort Noireau, F.
title Low probability of transmission of Trypanosoma cruzi to humans by domiciliary Triatoma sordida in Bolivia
title_short Low probability of transmission of Trypanosoma cruzi to humans by domiciliary Triatoma sordida in Bolivia
title_full Low probability of transmission of Trypanosoma cruzi to humans by domiciliary Triatoma sordida in Bolivia
title_fullStr Low probability of transmission of Trypanosoma cruzi to humans by domiciliary Triatoma sordida in Bolivia
title_full_unstemmed Low probability of transmission of Trypanosoma cruzi to humans by domiciliary Triatoma sordida in Bolivia
title_sort low probability of transmission of trypanosoma cruzi to humans by domiciliary triatoma sordida in bolivia
url http://hdl.handle.net/20.500.12110/paper_00359203_v91_n6_p653_Noireau
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