OBJECTIVE: To entomologically monitor Aedes spp. and correlate the presence of these vectors with the recent epidemic of dengue in Divinopolis, Minas Gerais State, Brazil. METHODS: Ovitraps were installed at 44 points in the city, covering six urban areas, from May 2011 to May 2012. After collection, the eggs were incubated until hatching. In the 4th stage of development, the larvae were classified as Ae. aegypti or Ae. albopictus. RESULTS: In total, 25 633 Aedes spp. eggs were collected. February was the month with the highest incidence, with 5635 eggs collected and a hatching rate of 46.7%. Ae. aegypti eggs had the highest hatching rate, at 72.3%, whereas Ae. albopictus eggs had 27.7%. Climate and population density influenced the number of eggs found. Indicators of vector presence were positively correlated with the occurrence of dengue cases. CONCLUSION: These data reinforce the need for entomological studies, highlight the relevance of Ae. albopictus as a possible disease vector and demonstrate its adaptation. Ae. albopictus, most commonly found in forested areas, comprised a substantial proportion of the urban mosquito population.
OBJECTIVE: To entomologically monitor Aedes spp. and correlate the presence of these vectors with the recent epidemic of dengue in Divinopolis, Minas Gerais State, Brazil. METHODS: Ovitraps were installed at 44 points in the city, covering six urban areas, from May 2011 to May 2012. After collection, the eggs were incubated until hatching. In the 4th stage of development, the larvae were classified as Ae. aegypti or Ae. albopictus. RESULTS: In total, 25 633 Aedes spp. eggs were collected. February was the month with the highest incidence, with 5635 eggs collected and a hatching rate of 46.7%. Ae. aegypti eggs had the highest hatching rate, at 72.3%, whereas Ae. albopictus eggs had 27.7%. Climate and population density influenced the number of eggs found. Indicators of vector presence were positively correlated with the occurrence of dengue cases. CONCLUSION: These data reinforce the need for entomological studies, highlight the relevance of Ae. albopictus as a possible disease vector and demonstrate its adaptation. Ae. albopictus, most commonly found in forested areas, comprised a substantial proportion of the urban mosquito population.
Authors: Oliver Mendoza-Cano; Carlos Moisés Hernandez-Suarez; Xochitl Trujillo; Héctor Ochoa Diaz-Lopez; Agustin Lugo-Radillo; Francisco Espinoza-Gomez; Miriam de la Cruz-Ruiz; Ramón Alberto Sánchez-Piña; Efrén Murillo-Zamora Journal: Int J Environ Res Public Health Date: 2017-08-08 Impact factor: 3.390
Authors: Sofia Ali; Olivia Gugliemini; Serena Harber; Alexandra Harrison; Lauren Houle; Javarcia Ivory; Sierra Kersten; Rebia Khan; Jenny Kim; Chris LeBoa; Emery Nez-Whitfield; Jamieson O'Marr; Emma Rothenberg; R Max Segnitz; Stephanie Sila; Anna Verwillow; Miranda Vogt; Adrienne Yang; Erin A Mordecai Journal: PLoS Negl Trop Dis Date: 2017-02-09