Dengue: survey indicates that 340 cities in Brazil are at risk
The Ministry of Health announced on March 12, 2015 the Rapid Index Survey for Aedes aegypti, known by the acronym LIRAa, which shows that 340 Brazilian municipalities are at risk and 647 cities are at an unsatisfactory level with mosquito larvae, which transmits not only dengue fever but also chikungunya fever.
Among the 340 cities at risk of an epidemic, half of them (171 in total) is in the Northeast. The other half is divided among the other regions of the country: 54 in the Southeast, 51 in the South, 46 in the North and 17 in the Northeast.
In all, data from 1844 cities in the country were taken in a survey carried out in January and February of 2015. The classification of the study is given according to the number of properties that present larvae of the mosquito Aedes aegypti. A city is considered at risk when more than 3.9% of homes present them. When the number is between 3.9 and 1%, cities are considered within unsatisfactory levels and if the percentage is less than 1%, then the level is satisfactory.
Among the capitals, Cuiabá (Mato Grosso) is the only one in a state of risk. But 18 other capitals are in the state of attention: Aracajú (Sergipe), Belém (Pará), Belo Horizonte (Minas Gerais), Campo Grande (Mato Grosso do Sul), Fortaleza (Ceará), Goiânia, Macapá , Maceió (Alagoas), Manaus (Amazonas), Palmas (Tocantins), Porto Alegre (Rio Grande do Sul), Porto Velho (Rondônia), Recife (Pernambuco), Rio de Janeiro, São Luís (Maranhão), São Paulo (São Paulo) and Vitória (Espírito Santo). However, five capitals did not present data to the survey: Curitiba (Paraná), Boa Vista (Roraima), Florianópolis (Santa Catarina), Natal (Rio Grande do Norte) and Rio Branco (Acre). showed the main types of breeding sites by region. See in the table:
|Water storage||Household deposits||Garbage||North|
|14.8||32.5||52.7||Source: Rapid Index Survey for|
Aedes aegypti (LIRAa), released by the Ministry of Health on 03/12/2015
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