| frequency of triatomines infected with trypanosoma cruzi collected in cuernavaca city, morelos, méxico. | in order to study the frequency of infection with trypanosoma cruzi in the triatomines from cuernavaca city (morelos, mexico), 1,060 triatomines were captured with the support of the population, from september 1990 to february 1992; 1,035 were triatoma pallidipennis adults, 88% presented flagellated protozoa with morphological characteristics corresponding to trypanosoma spp. later, in the laboratory, their ability to infect nih mouse confirmed the isolates identities as trypanosoma cruzi. the o ... | 1996 | 8986111 |
| importance of triatoma pallidipennis (hemiptera: reduviidae) as a vector of trypanosoma cruzi (kinetoplastida: trypanosomatidae) in the state of morelos, mexico, and possible ecotopes. | we performed a transversal-type epidemiological study in the state of morelos, mexico, to determine the presence of triatomines, their ecotopes, and importance in transmission of trypanosoma cruzi chagas. sampling sites included domestic, peridomestic, and wild areas with collection based on the person per hour technique. we determined the entomological indices related to infestation, density, overcrowding, colonization, infection, and dispersion, which were used to calculate transmission risk. ... | 1999 | 10337089 |
| [natural trypanosoma cruzi infection of triatominae bugs associated with human habitations in mexico ]. | to estimate the prevalence of infection with trypanosoma cruzi in triatominae species frequently found in and around mexican dwellings, and to assess the frequency of triatominae in towns by state. | 2000 | 11201577 |
| sylvatic focus of american trypanosomiasis in the state of morelos, mexico. | wild vectors and reservoir hosts of trypanosoma cruzi were surveyed from february 1993 to june 1994 in ticumán (18 degrees 46'n, 99 degrees 07'w), mexico (deciduous tropical forest). direct faeces examination showed that 87% of triatoma pallidipennis hosted the parasite; t. cruzi forms were present in cultures inoculated with faeces of fifty 67% triatomine bugs and thirty cd-1 strain mice (10 d old) inoculated (peritoneum) with faeces of positive insects t. cruzi amastigotes were found in heart ... | 2001 | 11935921 |
| evaluation of risk factors for rural infestation by triatoma pallidipennis (hemiptera: triatominae), a mexican vector of chagas disease. | control of chagas disease requires control of its triatomine vectors, which requires an understanding of the determinants of infestation. twenty-seven household environmental characteristics in the town of chalcatzingo, morelos, were analyzed for association with infestation by triatoma pallidipennis, the predominant local vector. data were obtained through timed household searches for triatomines and surveys that characterized intradomicile and peridomicile environments. of the households surve ... | 2004 | 15311472 |
| risk factors associated with house infestation by the chagas disease vector triatoma pallidipennis in cuernavaca metropolitan area, mexico. | chagas disease caused by infection with trypanosoma cruzi chagas (kinetoplastida: trypanosomatidae) is widespread in mexico, transmitted by various triatomine bugs (hemiptera: reduviidae). the only domestic vector in cuernavaca (population 650 000) is triatoma pallidipennis (ståhl) with t. cruzi seroprevalence ranging from 1% to 9% in the resident human population. we surveyed possible risk factors for t. pallidipennis infestation at cuernavaca (altitude 1200-2200 m) on south-western slopes of t ... | 2005 | 15958028 |
| infestation by triatoma pallidipennis (hemiptera: reduviidae: triatominae) is associated with housing characteristics in rural mexico. | long-term control of chagas disease requires not only interruption of the human transmission cycle of trypanosoma cruzi schyzotrypanum, chagas, 1909 by controlling its domestic triatomine vectors but also surveillance to prevent reinfestation of residences from sylvatic or persistent peridomestic populations. although a number of potential risk factors for infestation have been implicated in previous studies, the explanatory power of resulting models has been low. two years after cessation of tr ... | 2006 | 17162961 |