H3N2: there is still no vaccine for this strain of Influenza A in Brazil

H3N2: there is still no vaccine for this strain of Influenza A in Brazil
H3N2: there is still no vaccine for this strain of Influenza A in Brazil

Brazil has been experiencing, in recent days, an epidemic of flu caused by the Influenza A virus. As a result, Brazilians are running after immunization against the disease. What many people do not know is that there is currently no vaccine for the H3N2 strain. Brazil has vaccines that protect against Influenza A and B viruses. However, they are not specific for the variant that is affecting the country.

According to the Ministry of Health, the increase in the number of cases is being monitored in some states. At this time, the folder evaluates the scientific evidence in relation to the effectiveness of the vaccine used in this year’s campaign to prevent the new strain in circulation.

The folder also informs that it has already started negotiations for the acquisition of vaccines for the 2022 campaign. The immunizing agent ordered is recommended by the World Health Organization (WHO) for the Southern Hemisphere and includes the H3N2 virus circulating in its composition in its composition. country at this time.

During a trip with his family on the northeast coast, Gabriel Estrela felt weak in his body, headaches, a runny nose, fever and cough. “I suspected it was this virus because I was on a beach and I knew that the UPA was full of Influenza cases.”

People who experience flu-like symptoms should seek medical care at the nearest Basic Health Unit. Even with lower lethality than Covid-19, H3N2 is more likely to evolve into severe cases in risk groups (children, elderly, pregnant women and individuals with comorbidities).

H3N2 is a variant of the Influenza A virus, which is one of the main causes of common flu and colds. It can be transmitted between people through droplets released into the air when the flu person coughs or sneezes, explains infectologist Joana Darc da Silva.

“The symptoms are very accentuated, very intense, a lot of pain in the body, fever that comes on suddenly, runny nose, sore throat, which can be complicated by shortness of breath that we call respiratory syndrome that can lead to death.”

Existing vaccines

The flu immunization campaign was launched in March by the Ministry of Health and was expected to last until July. Initially, only people in the priority group would be vaccinated, but given the low demand from the population, the campaign was extended to all age groups.

With deaths confirmed by H3N2 in Mato Grosso do Sul, the State Government, through the State Department of Health, recommended that the population maintain the biosafety protocols used for Covid-19, to reduce the spread of the H3N2 Influenza virus . According to the Influenza Epidemiological Bulletin, referring to epidemiological week 51, released on Tuesday (28), the SES recorded 44 positive cases for H3N2, in addition to two deaths that occurred in Campo Grande and Corumbá.

According to the secretariat, it is important that the population get vaccinated, because, with the celebrations and vacations, the population needs to be aware, and whoever presents with symptoms should avoid attending festivities and looking for a health facility.

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