TY - JOUR
T1 - Distribution and infection of triatomines (hemiptera: Reduviidae) by trypanosoma cruzi in the state of michoacán, Mexico
AU - Martínez-Ibarra, José Alejandro
AU - Valencia-Navarro, Ignacio
AU - León-Saucedo, Salvador
AU - Ibáñez-Cervantes, Gabriela
AU - Bustos-Saldaña, Rafael
AU - Montañez-Valdez, Oziel Dante
AU - Díaz, Óscar Iván Cervantes
AU - Nogueda-Torres, Benjamín
PY - 2011/6
Y1 - 2011/6
N2 - 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% 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.
AB - 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% 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.
KW - Chagas disease
KW - Mexico
KW - Michoacán
KW - Triatominae
UR - http://www.scopus.com/inward/record.url?scp=79959525507&partnerID=8YFLogxK
U2 - 10.1590/S0074-02762011000400010
DO - 10.1590/S0074-02762011000400010
M3 - Artículo
C2 - 21739032
AN - SCOPUS:79959525507
SN - 0074-0276
VL - 106
SP - 445
EP - 450
JO - Memorias do Instituto Oswaldo Cruz
JF - Memorias do Instituto Oswaldo Cruz
IS - 4
ER -
