By NewsDesk @infectiousdiseasenews
The number of dengue fever cases and deaths are up sharply this year in Araguaína, northern Tocantins, according to a Sou de Palmas report (computer translated).
1,553 cases of dengue were confirmed from January to September this year, an increase of 352% over the same period last year.
In addition, the number of dengue-related fatalities have grown 472%, from 25 to 143.
Rainfall and heat are favorable environments for mosquito proliferation. But in addition to the weather, serotypes that had been absent for seven years have returned to circulation in the northern region, which contributed to the increase in the number of cases this year and also to the risk of epidemic.
According to the coordinator of CCZ’s Municipal Dengue Fight Program, Mariana Parente, there are four types of dengue: 1, 2, 3 and 4. She explains that the return of the types absent for years is a danger because many people have been immune only the kind that has circulated in recent years.
“There are 4 serotypes and they are always changing from year to year. And if I take dengue 1 and recover, I’m immune to it. If I get dengue 4 times I’m immune forever. It is only immune to the type that got it, ”explained the coordinator.
They are two types that returned to circulate region after a long time. “In the case of Araguaina, type 4 has been around for many years, since the last epidemic in 2012. And from last year, types 1 and 2 have returned, which are the worst, so the number of cases here and there has greatly increased. in the state, ”he explained.