On February 5, local time, Rio de Janeiro, Brazil, announced in the ** communiqué that the city has entered a public health emergency due to the rapid spread of dengue infectious diseases. Rio Mayor Paez announced that three of the 10 dengue emergency centers under construction in the city of Rio are already operational.
On the 2nd of this month, the Rio health department announced that there has been an outbreak of dengue fever in the city, with more than 11,000 confirmed cases and a record number of hospitalizations. The city reminds the public to seek medical attention in case of fever, headache, body aches and rashes.
Previously reported: Brazil reported about 1.6 million suspected cases of dengue fever in the whole of 2023, an increase of 17 from the approximately 1.3 million reported in 20225%。
The city of Dorados, in the state of Mato Grosso do Sul, Brazil**, said on January 3 that it had launched a large-scale vaccination against dengue fever on the same day, the first of its kind in Brazil.
According to Reuters, the city plans to vaccinate about 150,000 residents between the ages of 4 and 59 with the new dengue vaccine of QDENGA, which was recently approved. The vaccine needs to be given twice, three months apart.
The Brazilian Ministry of Health announced on January 15 local time that dengue vaccination will be promoted nationwide from February this year. It is reported that the target number of people to be vaccinated is 3 million, and adolescents between the ages of 6 and 16 will be the first group to be vaccinated. As a result, Brazil will become the first country in the world to vaccinate against dengue fever.
According to the local **February 1**, the Brazilian Ministry of Health set up an emergency center to respond to the dengue fever outbreak in the country. Brazil's Health Minister Nisia Trindade called on states** to respond aggressively to the spread of the outbreak.
About dengue fever.
Dengue fever is an acute infectious disease caused by dengue virus, transmitted by the bite of the vector Aedes mosquito, which is a common mosquito-borne disease in summer and autumn, and the clinical incubation period is usually 5-8 days. Depending on the symptoms, they can be classified as typical, mild, and severe. Typical symptoms include persistent fever, headache, muscle pain, arthralgia, etc., and in severe cases, death.
Among them, the symptoms of mild dengue fever are similar to those of epidemic fever and acute upper respiratory tract infection, and it is easy to miss the diagnosis.
The typical clinical manifestations of dengue fever are fever, "three pains" (severe headache, orbital pain, joint and muscle pain), "three reds" (flushing of the face, neck and chest), conjunctival hyperemia, rash, etc.
There are currently no specific antiviral** drugs.
At present, there is no approved vaccine for dengue fever, which means that there is no way to prevent dengue fever through vaccination.
At present, there is no specific antiviral** drug, and supportive and symptomatic measures are mainly taken. The principle is early detection, early diagnosis, early and early mosquito isolation. Early identification and timely treatment of severe cases are the key to reducing the case fatality rate.
How can dengue fever be prevented?
If you go to a dengue fever endemic area, wear long-sleeved clothes and pants, try to choose light colors, and use mosquito repellent products such as mosquito repellent when you go out to avoid mosquito bites;
Before going out, you can use mosquito coils, mosquito control aerosols, etc. in the hotel room, even if it is a high-end hotel, you should also pay attention to indoor mosquito control;
If you have suspicious symptoms, you should see a doctor promptly.
If fever develops within 2 weeks after returning, seek medical attention promptly and explain a history of travel to dengue-endemic areas; In order to prevent the spread of the disease to family members or others, please cooperate with the dengue fever prevention and control requirements of the local health department;
When staying at home or in the hospital**, do a good job of mosquito protection, including using mosquito nets, screen doors and windows, wearing long-sleeved clothes and pants, spraying mosquito repellents, etc., to reduce unnecessary outdoor activities.
*: China News Service.