Entomovirological Surveillance in Schools: Are They a Source for Arboviral Diseases Transmission?

Autor: Enrique Henao, Arley Calle-Tobón, Talya Shragai, Víctor Hugo Peña-García, Raúl Rojo, Juliana Pérez-Pérez, Guillermo L. Rúa-Uribe, Marcela Quimbayo-Forero
Rok vydání: 2021
Předmět:
Zdroj: International Journal of Environmental Research and Public Health, Vol 18, Iss 6137, p 6137 (2021)
International Journal of Environmental Research and Public Health
Volume 18
Issue 11
ISSN: 1660-4601
Popis: Surveillance and control activities for virus-transmitting mosquitoes have primarily focused on dwellings. There is little information about viral circulation in heavily trafficked places such as schools. We collected and analyzed data to assess the presence and prevalence of dengue, chikungunya, and Zika viruses in mosquitoes, and measured Aedes indices in schools in Medellín (Colombia) between 2016–2018. In 43.27% of 2632 visits we collected Aedes adults, creating 883 pools analyzed by RT-PCR. 14.27% of pools yielded positive for dengue or Zika (infection rates of 1.75–296.29 for Aedes aegypti). Ae. aegypti was more abundant and had a higher infection rate for all studied diseases. Aedes indices varied over time. There was no association between Aedes abundance and mosquito infection rates, but the latter did correlate with cases of arboviral disease and climate. Results suggest schools are important sources of arbovirus and health agencies should include these sites in surveillance programs
it is essential to know the source for arboviral diseases transmission and the identification of the most population groups exposed to these diseases to research and developing new strategies.
Databáze: OpenAIRE