Toda Hora – City Hall starts installing mosquito traps in Manaus

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522 traps will be installed in different locations in the Santo Antônio and São Raimundo neighborhoods, in the West zone

Photo: Semmas

The Manaus City Hall, in partnership with the Leônidas & Maria Deane Institute (ILMD / Fiocruz Amazônia), promoted this Wednesday, 10/14, an update and training course, putting into practice the use of Larvicide Disseminating Stations (EDs) ), a strategy to combat mosquitoes that transmit dengue and malaria. The activity was carried out by the employees of the Entomology and Vector Control Center, of the Municipal Health Secretariat (Semsa).

EDs are plastic containers, wrapped in a black fabric, where a larvicide is applied, partially diluted in water. This structure attracts the mosquito, which, after landing on the tissue, starts to carry the poison on its paws, helping in its dispersion.

For the municipal secretary of Health, Marcelo Magaldi, the partnership between the City of Manaus and Fiocruz Amazônia is an important gain for municipal health, in a year in which, in addition to the pandemic of the new coronavirus, dengue also represented a factor of concern , due to the increase in the occurrence of the disease in the city.

“With this project, we have taken a significant step to stop the spread of dengue and malaria in Manaus, but the population also needs to continue to be a partner in this process. We need to keep an eye on the accumulation of standing water inside our homes, especially as the rainy season is imminent. Each one doing their part, combined with the performance of Entomology and Vector Control agents in the municipality, we can overcome this disease ”, emphasizes Magaldi.

Evaluation

According to the head of Semsa’s Entomology and Vector Control Center, Edvaldo Rocha, 522 traps will be installed in different locations in the Santo Antônio and São Raimundo neighborhoods, in the West Zone, two areas with a high incidence of mosquitoes Aedes aegypti, transmitter of dengue.

“After much study and evaluation of the techniques available for the population control of disease-carrying mosquitoes, we are beginning the definitive application of Disseminating Stations, a strategy used successfully in other urban centers in the country. These traps are of low cost and quick results, in addition to representing an important advance for the vector control work carried out by the Manaus City Hall ”, explains Rocha.

“The mosquito becomes an ally”, comments Fiocruz researcher, Jose Carvajal, technical coordinator of the project. “We started with the installation of ovitramps (traps that simulate the environment for the breeding of the Aedes mosquito) in those same neighborhoods. Analyzing the population density of the mosquito, we were able to assess what was the state of the spread of the species in these locations, which is why we chose them to start the project ”, he informs.

According to him, this part of the process lasted a year, a time necessary for the collection of data regarding the populations of Aedes aegypti, by the agents, who will now be able to compare the population density of mosquitoes after the implementation of DEs.

“We need to assess whether the reduction in the number of mosquitoes will occur just because of the Disseminating Stations, or if the climate will also have a significant influence. In summer, populations tend to decrease, because there are not enough breeding sites to maintain this density ”, adds Carvajal.

Still according to him, from the third month of application of the stations it will be possible to see a decrease in the population of mosquitoes in the two neighborhoods, but the consolidated result of the application of this strategy will be monitored over another year.

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