Eight deaths and 12,500 cases of dengue fever concern Rio Grande do Sul experts

Fever lasting 2 to 7 days with at least two symptoms: diarrhea, headache, muscle aches, joint pain, pain behind the eyes, red spots on the skin, nausea, depression, vomiting and itching. In this picture, a suspected dengue fever. In Rio Grande do Sul alone, almost 30,000 suspected cases of the disease were reported this year, of which 12,500 were confirmed, which is almost 42 percent. Of those confirmed, 10,500 or 84% are original, ie sick in the same place where the person lives.

“Dengue fever is a very unpleasant disease. A person gets very much worse during the disease. Sometimes an infected person can’t even take food in their mouth,” says epidemiologist Jair Ferreira, a professor at the Department of Social Medicine of the Faculty of Medicine. . Dengue can progress to serious cases. It is not a completely harmless disease with fatalities, ”confirms Luciano Goldani, an infectious disease expert and professor at the Infectious Diseases Service at Porto Alegre Hospital and UFRGS. He stresses that if the symptoms do not go away within 7-10 days, you must return to the doctor.

Rio Grande do Sul has so far registered eight deaths due to infection with the dengue virus. The deaths occurred in Boa Vista do Burica, Chapada, Cristal do Sul, Dois Irmãos, Igrejinha, Jaboticaba and Horizontina, two of which are recorded in the latter municipality. By comparison, last year the state recorded a total of 11 deaths from the disease, only three more. The data comes from the State Spatial Data Infrastructure (IEDE) panel, which compiles data from the State Health Surveillance Center (CEVS) of the State Department of Health (SES).

Despite the lack of deaths in Porto Alegre, the number of confirmed cases in the first four months of the year exceeds the sum of the previous six years, which form a historic series for the municipality. There are 1,554 confirmed cases in the capital in 2022, compared to less than a thousand in the whole series. The current figure is 104 cases per 100,000 inhabitants. Lajeado is the second city after Porto Alegre with a total number of cases of 1,238. There are currently 442 municipalities in Rio Grande do Sul infested with Aedes aegypt. This is the largest number of cities in this situation in a historic follow-up series done since 2000.

“We will still have heat and rain for the next few weeks, which is an ideal scenario for mosquitoes to spread. Even on cold mornings, the day is getting warmer.” to raise awareness and mechanical control of Aedes ’breeding grounds, so he believes that in 80 percent of cases, the resident knows.

Climate change has been cited by experts as contributing to the increase in mosquito numbers. “Until the 1990s, we had virtually no dengue fever. What happened was climate change. We have less cold and more rain. Prevention must be done before the heat season starts in December, ”explains Goldani. Another point was negligence about the problem during the Covid-19 pandemic. “The health problem focused on Covid-19 and people neglect the dengue fever problem,” Ferreira analyzes. He confirms that the life cycle of the Aedes female is 30 days, but with one mating it lays several eggs during this time. To prevent outbreaks, we prevent the formation of new adults.

The situation prompted the state government to declare maximum vigilance against dengue fever and provided, through the SES, a modeling panel that included available population and leaders with information on infection rates, the number of cases and the number of endemic pathogens, and training. of the care teams focused on clinical management and the development of video lessons for the care and health care teams.

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