2024-02-12 18:00:03
Does a new large-scale epidemic threaten Brazil? Barely recovered from the Covid-19 massacre (which claimed 709,000 victims here), the Latin American giant is today facing the accelerated spread of another devastating virus, this time well known: dengue. The explosion in recent weeks in the number of contaminations is such that experts are already talking about a crisis “historical” even ” unprecedented “.
An “Aedes aegypti” mosquito found in a house during a dengue epidemic in Brasilia, February 6, 2024. UESLEI MARCELINO / REUTERS
Since the start of the year, the Ministry of Health has counted more than 408,000 cases of this viral disease, transmitted by mosquitoes. Temples of the Egyptianswhich causes pain and intense fever, or 337% more than for the same period in 2023. Already, sixty-two people have officially died as a result of an infection linked to the virus, but 279 other deaths so-called “suspects” are also being authenticated.
More than half of the cities are affected and four states have declared a state of health emergency. The situation is particularly serious in Minas Gerais (southeast), Acre (Amazon), Parana (south) and, above all, the federal district of Brasilia. The capital has an incidence rate of 1,700 cases of dengue fever per 100,000 inhabitants, well above the alert threshold, established at 300 cases per 100,000 inhabitants.
“Heat and humidity”
As worrying as it is, the epidemic is only in its infancy. According to the Ministry of Health, Brazil could face a wave of 4.2 million to 5 million cases of dengue fever in 2024: unheard of, in a country that has long been accustomed to tropical diseases. For comparison, the worst year in this regard dates back to 2015. 1.6 million Brazilians were then infected with dengue fever, three times less than the forecasts established for 2024.
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For several days, a small wind of panic has been blowing across Brazil. Sales of mosquito repellent spray have exploded by 400% according to figures from the Nutriex group, which specializes in this type of product. In Brasilia, hospitals are struggling to cope with the influx of tens of thousands of feverish patients. In order to relieve the sector, the air force opened a field hospital on February 5 in Ceilandia, one of the “satellite cities” of the capital. In just three days, it welcomed more than 3,500 patients.
An officer sprays insecticide to kill “Aedes aegypti” mosquitoes to help mitigate an outbreak of dengue fever in Ceilandia, Brazil, February 7, 2024. UESLEI MARCELINO / REUTERS People wait to receive medical care in a tent fortune to treat suspected cases of dengue, in Ceilandia (Brazil), February 5, 2024. UESLEI MARCELINO / REUTERS A woman suspected of having dengue is helped by soldiers in a military clinic set up to treat the epidemic, in Ceilandia (Brazil), February 9, 2024. LUIS NOVA / AP
“At the origin of this epidemic, we find a combination of factors”details Edilson Luiz Durigon, virologist at the Pasteur Institute in Sao Paulo. The first of them is climatic: “The El Niño phenomenon caused drought and high temperatures in 2023, followed by heavy rains. Heat and humidity: this is the ideal cocktail for mosquito proliferation”insists the researcher.
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