Host-feeding preference of the mosquito, Culex quinquefasciatus, in Yucatan State, Mexico.
J Insect Sci
; 10: 32, 2010.
Article
em En
| MEDLINE
| ID: mdl-20578953
ABSTRACT
Studies were conducted to determine the host-feeding preference of Culex quinquefasciatus Say (Diptera Culicidae) in relation to the availability of human and domestic animals in the city of Merida, Yucatan State, Mexico. Mosquitoes were collected in the backyards of houses using resting wooden boxes. Collections were made five times per week from January to December 2005. DNA was extracted from engorged females and tested by PCR using universal avian- and mammalian-specific primers. DNA extracted from avian-derived blood was further analyzed by PCR using primers that differentiate among the birds of three avian orders Passeriformes, Columbiformes and Galliformes. PCR products obtained from mammalian-derived blood were subjected to restriction enzyme digestion to differentiate between human-, dog-, cat-, pig-, and horse-derived blood meals. Overall, 82% of engorged mosquitoes had fed on birds, and 18% had fed on mammals. The most frequent vertebrate hosts were Galliformes (47.1%), Passeriformes (23.8%), Columbiformes (11.2%) birds, and dogs (8.8%). The overall human blood index was 6.7%. The overall forage ratio for humans was 0.1, indicating that humans were not a preferred host for Cx. quinquefasciatus in Merida.
Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Culex
/
Preferências Alimentares
/
Interações Hospedeiro-Parasita
Limite:
Animals
/
Female
/
Humans
País/Região como assunto:
Mexico
Idioma:
En
Ano de publicação:
2010
Tipo de documento:
Article