| human infection and risk of transmission of chagas disease in hidalgo state, mexico. | new zones with risk of infection for chagas disease were reported in san antonio tezoquipan, caltimacan, and el ahorcado in the hidalgo state of mexico. antibodies to trypanosoma cruzi were detected by enzyme-linked immunosorbent assay and indirect hemagglutination assay in human serum samples. study subjects were also given an electrocardiogram. trypanosoma cruzi was isolated from triatomines collected and its virulence was determined in balb/c mice. seropositive persons were found in the three ... | 2007 | 17297042 |
| triatoma mexicana (hemiptera: reduviidae) in guanajuato, mexico: house infestation and seasonal variation. | triatoma mexicana was described by herrich-schaeffer in 1848. in 1940, a male specimen was found in hidalgo. in 1970, this species was recorded in the state of queretaro. later, it was registered in guanajuato and san luis potosi. in the present paper we performed an investigation in 545 dwellings from three counties in the state of guanajuato, mexico, from march 2003 to may 2004. the search and capture of triatomines were seasonally performed indoors and outdoors. entomological indexes were cal ... | 2007 | 18060318 |
| natural infection and distribution of triatomines (hemiptera: reduviidae) in the state of querétaro, mexico. | chagas disease is present in mexico but data on the presence of its vectors are not known for all the states. we conducted an epidemiological study to ascertain the presence of bedbugs in 23 communities of seven municipalities in the state of querétaro, mexico. sampling was performed within and outside dwellings, using the technique of one person searching per hour per house. four triatomine species were found: triatoma mexicana (94%), tri. dimidiata (3%), tri. gerstaeckeri (2%) and tri. pallidi ... | 2008 | 18589465 |