Analysis of conditions of receptivity and vulnerability to malaria in the state of Maranhão and areas bordering the state of Piauí

Human malaria occurs in more than 109 countries worldwide and has the greatest impact on populations with conditions of vulnerability and limited access to health services. It is a mixed epidemiological design with an ecological study and an entomological study. An ecological study will be carried out to identify the notified cases of malaria in the state between the years 2003 and 2020. Subsequently, a zoning of the state will be carried out, using previously tested models, in order to create maps of areas indicating the places with greater receptivity for the vector and possible transmission of the disease. With the receptivity data proposed by the model and vulnerability, two municipalities with greater receptivity to malaria and municipalities in the region of Piauí/Maranhão border to detect potential larval habitats for Anopheles of the subgenus Nyssorhynchus by remote sensing, on a local scale. Entomological studies of immatures and adults to verify the receptivity of malaria in these areas will be carried out. Data such as demographic variables (age and sex), spatial (city of residence and probable place of infection), temporal (month and year of infection) and parasitological variables (parasitic species) will be analyzed descriptively. To assess the diversity and abundance of anopheline species in each area, the Shanon–Wiener indices  will be used (H′); Simpson index (Ds); total number of species (N); First-order Jackknife (DE) richness, Student’s test in DiVES to compare Shannon – Wiener indices in samples. This proposal will allow subsidizing elements for the improvement of the epidemiological and entomological surveillance of malaria with the aim of eliminating this disease in this state.

Project details

Epidemiology
Surveillance

Dec 2020

Brazil