OBJECTIVE: To assess infestation levels of Aedes aegypti using the oviposition trap (ovitrap) method and to compare these results with data obtained with the use of indices traditionally applied in public programs aimed at fighting this vector. METHODS: Nine sentinel areas in Northeastern, Brazil, were assessed and infestation levels were measured for a nine-month period. Egg density and container indices were estimated and compared with previous results found using the house index and Breteau index. RESULTS: The results indicated that the area studied was infested with this vector during the entire study period and that the infestation was widespread in all areas. Different results were found with the different indices studied. There were areas in which the house index and the Breteau index were negative or close to zero, whereas the container index for the same area was 11% and the egg density index was 8.3%. CONCLUSIONS: The container and egg density indices allow better assessment of infestation rates in a city than the conventionally used indices (house index and Breteau index). At lower operational costs and easier standardization, these indices can be applied as a measurement tool for assessing infestation rates during entomological surveillance in programs to fight Aedes aegypti.
OBJECTIVE: To assess infestation levels of Aedes aegypti using the oviposition trap (ovitrap) method and to compare these results with data obtained with the use of indices traditionally applied in public programs aimed at fighting this vector. METHODS: Nine sentinel areas in Northeastern, Brazil, were assessed and infestation levels were measured for a nine-month period. Egg density and container indices were estimated and compared with previous results found using the house index and Breteau index. RESULTS: The results indicated that the area studied was infested with this vector during the entire study period and that the infestation was widespread in all areas. Different results were found with the different indices studied. There were areas in which the house index and the Breteau index were negative or close to zero, whereas the container index for the same area was 11% and the egg density index was 8.3%. CONCLUSIONS: The container and egg density indices allow better assessment of infestation rates in a city than the conventionally used indices (house index and Breteau index). At lower operational costs and easier standardization, these indices can be applied as a measurement tool for assessing infestation rates during entomological surveillance in programs to fight Aedes aegypti.
Authors: Rosângela Maria Rodrigues Barbosa; Maria Alice Varjal de Melo-Santos; José Constantino Silveira; Maria Helena Neves Lobo Silva-Filha; Wayner Vieira Souza; Cláudia Maria Fontes de Oliveira; Constância Flávia Junqueira Ayres; Morgana do Nascimento Xavier; Marina Praxedes Rodrigues; Suzane Alves Dos Santos; Mitsue Maia Nakazawa; Lêda Narcisa Regis Journal: Mem Inst Oswaldo Cruz Date: 2020-05-18 Impact factor: 2.743
Authors: Florisneide R Barreto; Maria Gloria Teixeira; Maria da Conceição N Costa; Marilia S Carvalho; Mauricio L Barreto Journal: BMC Public Health Date: 2008-02-07 Impact factor: 3.295
Authors: Lêda N Regis; Ridelane Veiga Acioli; José Constantino Silveira; Maria Alice Varjal Melo-Santos; Wayner Vieira Souza; Cândida M Nogueira Ribeiro; Juliana C Serafim da Silva; Antonio Miguel Vieira Monteiro; Cláudia M F Oliveira; Rosângela M R Barbosa; Cynthia Braga; Marco Aurélio Benedetti Rodrigues; Marilú Gomes N M Silva; Paulo Justiniano Ribeiro; Wagner Hugo Bonat; Liliam César de Castro Medeiros; Marilia Sa Carvalho; André Freire Furtado Journal: PLoS One Date: 2013-07-03 Impact factor: 3.240
Authors: Diana P Naranjo; Whitney A Qualls; Hugo Jurado; Juan C Perez; Rui-De Xue; Eduardo Gomez; John C Beier Journal: BMC Public Health Date: 2014-07-02 Impact factor: 3.295