title: [Operational impact of the use of insecticidal products on Aedes aegypti larvae in Havana province].
abstract: BACKGROUND
  In spite of the huge efforts of the Aedes aegypti eradication program in Cuba, there are still certain infestation indexes favoring the development of outbreaks or epidemics in some regions of the country. Havana province holds a leading position in this negative indicator, in which the use of insecticides plays an important role.
  
  
  OBJECTIVE
  To evaluate the impact of the use of insecticides in the development of drug resistance by this species in Havana.
  
  
  METHODS
  Fifteen Ae. aegypti strains from the fifteen municipalities of the province were used. They were all collected in 2008. The level of susceptibility to insecticides was measured by means of the WHO-recommended bioassays.
  
  
  RESULTS
  Sixty percent of the strains were susceptible to chlorpirifos; more resistance to pyrethroid cypermethrin was observed followed by lambdacyalothrin and cifluthrin.
  
  
  CONCLUSIONS
  The insecticide Chlorpirifos is a good candidate to be used with pyrethroids, on a rotational scheme, to delay the development of resistance to pyrethroids in Ae. aegypti vectors in Havana province.
authors: Instituto de Medicina Tropical "Pedro Kouri (IPK), La Habana, Cuba. mrodriguez@ipk.sld.cu
authors: María Magdalena
authors: MM
authors: Rodríguez Coto
authors: Juan A
authors: JA
authors: Bisset Lazcano
authors: Maira
authors: M
authors: Moya Hernández
authors: Yanelys
authors: Y
authors: Ricardo Leyva
authors: Omayda
authors: O
authors: Pérez Insueta
authors: Ilario
authors: I
authors: Fuentes López
authors: Lorenzo
authors: L
authors: Caceres Carrera
mesh_terms: D000330:Aedes; D000818:Animals; D003462:Cuba; D007306:Insecticides; D007814:Larva / Q000187:drug effects; D009032:Mosquito Control / Q000592:standards*
chemical_list: D007306:Insecticides