Distribution and infection of triatomines (Hemiptera: Reduviidae) by Trypanosoma cruzi in the state of Michoacán, Mexico
Mem. Inst. Oswaldo Cruz
;
106(4): 445-450, June 2011. mapas, tab
Article
in English
| LILACS
| ID: lil-592187
ABSTRACT
An entomological study of triatomine species was carried out to assess their prevalence in 10 localities of the state of Michoacán, Mexico. Entomological indices were calculated to estimate the risk for vector-borne transmission of Trypanosoma cruzi to the human population in this area. Four triatomine species (Triatoma barberi, Triatoma dimidiata, Meccus pallidipennis and Meccus longipennis) were collected from the study area. This is the first report of M. longipennis and T. dimidiata in Michoacán. M. pallidipennis was significantly (p < 0.05) more abundant than any of the other species collected in the study area. Infection indices were greater than 50 percent for each of the four collected triatomine species. Significantly more triatomines were collected from intradomiciliary areas than from peridomiciliary or sylvatic areas. Infestation, crowding and density indices were low, whereas colonisation indices were high in five localities. The current vectorial conditions in the study area require continuous entomological and serological surveillance to diminish the risk of T. cruzi transmission to human populations.
Full text:
Available
Index:
LILACS (Americas)
Main subject:
Trypanosoma cruzi
/
Triatominae
/
Insect Vectors
Type of study:
Risk factors
Limits:
Animals
Country/Region as subject:
Mexico
Language:
English
Journal:
Mem. Inst. Oswaldo Cruz
Journal subject:
Tropical Medicine
/
Parasitology
Year:
2011
Type:
Article
Affiliation country:
Mexico
Institution/Affiliation country:
Escuela Nacional de Ciencias Biológicas/MX
/
Salud en el Estado de Michoacán/MX
/
Universidad de Guadalajara/MX
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