Dengue cases grow 339% in Brazil in 2019; almost a thousand cities are at risk of an outbreak

he Ministry of Health released on Tuesday (30) new data on dengue, zika and chikungunya. As of April 13, 2019, there were 451,685 probable cases of registered disease, an increase of 339% in registered dengue cases.

According to the Ministry’s new bulletin, 994 municipalities have a high rate of infestation, with a risk of an outbreak for dengue, zika and chikungunya.

Rodrigo Said, General Coordinator of National Programs for the Control and Prevention of Malaria and Diseases Transmitted by Aedes, informed during a press conference that the majority of the cases are in the Southeast region, mainly in São Paulo and Minas Gerais.

“The overall scenario for dengue is 451,685 probable cases of the disease, with 65% of cases occurring in the Southeast region, mainly in the regions of São Paulo and Minas Gerais,” he said. Collective interview. According to him, the probable cases are those that have been notified and take into account the cases already discarded.

Localized epidemic

Eight federative units have a higher incidence of 300 cases per 100 thousand inhabitants, a worrying number. Tocantins has the highest incidence of dengue cases. Followed by Mato Grosso do Sul, Goiás, Minas Gerais, Acre, Espírito Santo, São Paulo, Federal District. Paraná has incidence above 100 cases per 100 thousand inhabitants.

Said warns that the numbers indicate epidemic, but asks caution: “When you look at these states, we know that some are very large so not every area will have an epidemic. is very aggregate, “said Said.

Health Surveillance Secretary Health Ministry Wanderson Kleber said the country does not live a widespread epidemic of the disease: “Even with an increase in the number of cases of the disease, the incidence rate for 2019 is within the range expected for the period . So, so far, the country is not in an epidemic situation, although there may be localized epidemics in some municipalities and states, “he said.

According to Said, the increase in the number of cases of dengue even in summer, a time of proliferation of the mosquito aedes aegypti, is due to some factors: “In the last two years the country went through periods outside its seasonality, and since last year, environmental conditions have been conducive to the proliferation of mosquitoes with rising temperatures and more rainfall. “

Different sorotype

Said is alert to the return of serotype 2, which for a long time was not identified in the country and the change leaves the population more susceptible. More than 85% of the cases evaluated were serotype 2, when in the last years they were only 5%.

“In dengue, when there is a change in the circulating serotype, there is an increase in the number of cases. In recent years, types 1 and 4 were predominant, at the end of last year serotype 2 began to prevail,” said Said.

Zika e Chikungunya

There were 3,085 cases of Zika throughout the country, with an incidence of 1.5 cases per 100,000 inhabitants. There were no deaths from the disease.

Chikungunya has an incidence of 11.6 per 100,000, of which 24,111 are registered cases. There was a reduction when compared to the same period last year and there were also no deaths.

According to Said, the chikungunya virus is very localized and has not had a national dispersion.

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