Dengue cases increase by 548% per year and leave DF awake

posted on 27/04/2022 05:46 / updated on 04/27/2022 5:47 AM

Aedes aegypti mosquito – (credit: reproduction)

In the federal state, there has been a worrying increase in the number of cases of dengue virus infection transmitted by mosquitoes. Aedes aegypti. In just one year, diagnoses of the disease rose 548 percent. The results are calculated by DF Health Department according to Epidemiological Week (SE), and the latest data in the folder are for SE 14, 3-9. April, when 26,813 cases were detected. At the same time, in 2021, the positive result was 4,137. In the previous week of 2022, 23,263 diagnoses were diagnosed, compared to 3,673 last year, an increase of 533 percent. One person died.

The situation caught the attention of public leaders. The Governor, Ibaneis Rocha (MDB), commented on the progress of the disease on the agenda this Tuesday (26 April) at the Hospital da Criança de Brasília in José Alencar. “We have collaborated, visited people’s homes and reported in the press so we can eliminate dengue epidemics. The death toll has not been high. This will delight us and people hope we will continue the dengue epidemic. Fight dengue fever,” Ibaneis said.

Dengue scenario within the federal government
Dengue scenario within the federal government
(photo: Editora de Arte / CB)

According to Rapid Index Survey Aedes aegypti within the federal district (Liraa), prepared by the secretariat, the DF has 12 districts with a high rate of building infections. The study takes into account the 33 administrative districts of the DF and measures the presence of larvae in a given location at three levels: satisfactory, vigilant and the risk of an outbreak. The other 21 regions show satisfactory results. Paranoá, Varjão, Itapoã, Plano Piloto and Planaltina are the cities with the highest alert levels.

With the incidence of dengue cases per 100,000 inhabitants in 2022 as a criterion, the order is led by São Sebastião (1,707), followed by Sobradinho 2 (1,495) and Vicente Pires (1,297). However, the concern is not limited to a few places within the federal district. If the variation between the 2022 SE 14 in 2022 and the same area in 2021 is taken into account, the list will change its appearance. Diagnoses of Taguatinga disease increased by 1,219 percent in absolute terms and Ceilândia by 1,107 percent. Park Way (900%), Lago Sul (628%) and Jardim Botânico (500%) also showed alarming growth.

the virus has spread

Experts believe the explosive increase in dengue fever numbers is due in part to the covid-19 pandemic. Bergmann Morais Ribeiro, a virologist at the University of Brasília (UnB), explains that although the disease does not spread directly between people, dengue fever can be transmitted through a mosquito that spreads from one individual to another. “The population returned to walk more on the streets. This movement spread the virus,” he points out.

The professor emphasizes the climatic similarity of the two years. “We also had rainy months last year, but people were more at home because of the pandemic. Most cases are asymptomatic and most did not seek medical attention at the time. When the population was closed, the infection did not spread,” the virologist adds.

Federal Undersecretary of Health Divino Valero Martins agrees with the professor on the importance of a health emergency at an explosive pace of dengue diagnoses. “Due to the pandemic, the Ministry of Health issued a decree restricting the work of a health officer on home visits,” he explains. The leader also emphasizes the behavior of the population. “When we put the factors together, we understand the growth. Human misuse (mosquito control), the accumulation of household waste and the different subtypes of the virus in the store. .


The fight against dengue fever must be taken seriously by the population and public actors, as the disease can leave traces or even lead to death. “The main complaint is fatigue, which can take weeks to heal,” warns infectious disease specialist Ana Helena Germoglio. “Some patients take eight weeks to overcome fatigue after dengue, similar to covid-19,” the doctor continues. “Most patients develop mild to moderate dengue fever that leaves no significant sequelae. But for those who develop severe forms that require intubation and mechanical ventilation, the extension may be motor or airway, depending on the type of complication the patient has,” the infectologist concludes.

for three questions

Divine Valero Martins, Undersecretary of State for Health

What is the Department of Health doing to eliminate dengue cases from DF?

We improved medical care and hospital care, set up tents (for external care) in some hospitals, such as Ceilândia, Brazlândia and Taguatinga, to treat the disease in the shortest possible time, avoiding worsening of cases and deaths. So much so that we have more than 26,000 cases and only one death. Not just in treating patients, we collect data, go back to addresses, and do injections and disposal, including in a smokehouse. There are two parallel activities.

What precautions should be taken to avoid contamination?

More than 97% of mosquitoes occur inside the house, not in street debris, for example, because it is a domestic mosquito that needs to be fed on human blood. Pay attention not only to stagnant water, but also to the proximity of plants and shady places. Every day, people have to open windows to ventilate the house, let in light, and watch for mosquito bites during the day. If so, it probably is Aedes aegypti.

How should the population work?

Call 160 or report during inspection. We have two active teams, health and environmental monitoring. We will only be able to overcome dengue fever if we unite the population and the government. It is important that every citizen is a nurse in their own home. They are individual actions with collective reflexes. That’s what public health is all about.

expert word


Dengue, a viral disease spread by the mosquito Aedes aegypti, usually causes fever, pain in the body and joints, and headaches as well as behind the eyes and patches on the skin. Some patients may experience nausea, severe abdominal pain, signs of bleeding, persistent vomiting, restlessness, or drowsiness. These are warning signs. Any patient with these symptoms should seek immediate medical attention.

However, the symptoms of dengue are very nonspecific. Alarm signals indicate that the patient should seek medical attention because severe forms of dengue can even develop to death. There is no special treatment for dengue fever. There is no cure for a viral infection. Treatment is with symptomatic medications that reduce pain and fever. The recovering patient should rest and monitor for signs of alarm. Most develop spontaneously as symptoms improve.

André Bon, Infectious Diseases Hospital in Brazil

Report it!

Has a neighbor or acquaintance not taken steps to prevent the mosquito from spreading? Dengue outbreaks can be reported directly via the Ombudsman’s website or by calling 160. The record is sent to the health area responsible for the inspection to the address provided by the complainant.

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