The opossum Didelphis virginiana as a synanthropic reservoir of Trypanosoma cruzi in Dzidzilché, Yucatán, México

Presence of Virginia opossum (Didelphis virginiana) and Pic (Triatoma dimidiata) infected with Trypanosoma cruzi in urban areas: preliminary evaluation in the city of Campeche, Mexico

“…Most of the opossums infected were captured during the dry season, probably because their activities increase during that time of the year, which was also observed by Ruiz-Piña et al (2002). The high infection prevalence and the detectable parasitosis are a potential infection risk for vectors as well as other mammals including man.…”

Isolation of Salmonella enterica and serologic reactivity to Leptospira interrogans in opossums (Didelphis virginiana) from Yucatán, México

“…Didelphis virginiana occurs widely in México including the Yucatán Peninsula where this opossum is abundant in the peridomestic habitat, thus bringing a risk to transmit zoonotic diseases such as Chagas disease to the human populations 8 . In this paper, we report for the first time in México data on the infection by Salmonella enterica and the seroprevalence of antibodies against Leptospira interrogans in D. virginiana.…”

“…The data of infection by S. enterica and L. interrogans in opossum, were obtained during a populational study of this mammal to evaluate its importance as a reservoir of Trypanosoma cruzi, the etiologic agent of Chagas disease 8 . Opossums were captured from April 1996 to May 1998 in Dzidzilché (21°08'51.76" and 89°41'28.24"), a semiurban small village located 25 km northwestern Mérida, the capital of the Yucatán State, México (Fig.…”

High Frequency of Human Blood in Triatoma dimidiata Captured Inside Dwellings in a Rural Community in the Yucatan Peninsula, Mexico, but Low Antibody Seroprevalence and Electrocardiographic Findings Compatible with Chagas Disease in Humans

“…1,2 In the Yucatan Peninsula of Mexico, cryptic species were found; specimens from Yucatan should be considered as separate species rather than T. dimidiata. 2 Several studies have shown that the vector population in the domestic and peridomestic cycles in the Yucatan Peninsula comes from sylvan stocks and presents clear seasonality [3][4][5][6][7] . In this cycle of transmission, several reservoirs are involved: infected Didelphys virginiana and Peromyscus leucopus have been found in the sylvan cycle, and in the peridomestic and domestic cycles, Canis familiaris, Rattus rattus, Mus musculus, and humans have been found at different rates.…”

“…In this cycle of transmission, several reservoirs are involved: infected Didelphys virginiana and Peromyscus leucopus have been found in the sylvan cycle, and in the peridomestic and domestic cycles, Canis familiaris, Rattus rattus, Mus musculus, and humans have been found at different rates. [7][8][9] The precise epidemiological role of T. dimidiata in human infection in the Yucatan peninsula should be addressed.…”