Flu vaccine: Doctors now recommend a second dose for older adults

In adults over 60 years of age, to keep away from the decline of anti-influenza antibodies, kids and danger teams, infectologists of the Brazilian Society of Immunization (SBIm) recommend receiving the influenza vaccine twice a 12 months. The interval between doses is six months. An intensification technique is advisable to scale back the variety of respiratory infections, medical calls for, and hospital admissions.

According to consultants, the flu vaccine obtainable in Brazil begins to lose its effectiveness after six months. As a outcome, through the twenty fourth National Vaccination Drive in 2022, docs advisable a booster dose in early September.

Influenza vaccination in Cachoeiro. Credit: Disclosure | Municipality of Cachoeiro

The congress was attended by infectious illness specialist Lauro Ferreira Pinto, a member of the Brazilian Society of Vaccination in Espiritu Santo. According to him, from the start of 2022, the United States will use an immunization with 4 occasions extra antigens than a standard vaccine. In addition, there’s a recombinant vaccine with trendy applied sciences and one other vaccine with adjuvants. There are three best vaccines for the aged advisable by an official American authorities committee.

According to Dr. Lauro, a high-dose antigen vaccine has been submitted to Anvisa and will likely be accredited for use in Brazil early subsequent 12 months.

“Because it is not but obtainable, the Immunization Society’s advice is to offer a second dose of the frequent flu vaccine six months later to guard the aged and people with weakened immune techniques. But that is conditional, not necessary.” , highlighted.

In late 2021, the variety of influenza instances because of the Darwin (H3N2) pressure elevated in Brazil. Therefore, the general public service carried out vaccinations exterior the season. The infectious illness professional explains that not like nations within the Northern Hemisphere, the place colds and flu are concentrated at one time of the 12 months, in tropical nations like Brazil, flu outbreaks happen at completely different occasions of the 12 months, similar to winter and Christmas. and carnival.

“Because there aren’t any such clear durations in Brazil, the unfold of the virus is free. The advice for a second dose of influenza vaccine represents a possibility to spice up immunization. Doctors might prescribe an influenza vaccine relying on the situation of the illness, however discovering it depends upon its availability and materials and technical assist, as the general public well being service shouldn’t be obliged to seek out it,” defined the physician.

The six-month interval between doses could also be shorter relying on the state of affairs. “In normal, six months can be applicable, however for those who’ve had the flu earlier than, for instance, it may very well be shorter,” mentioned Lauro Ferreira.

survey on the newspaper In Vitoria, laboratories that use the flu vaccine present that the price of a dose of immunizer is R$ 120. It is critical to acquire a vaccination card for use. Immunizers are normally obtainable year-round.


According to an InfoGripe e-newsletter, the Osvaldo Cruz Foundation (Fiocruz) reported a rise in instances of extreme acute respiratory syndrome (SARS) in Espirito Santo. Infectious illness doctor Paulo Mendez Pecanha, professor on the School of Medicine at Ufes, believes that low vaccination charges could also be accountable for this potential improve.

“The essential viruses circulating are the flu and Covid-19. And we’re caught on the third and fourth doses of the coronavirus, and we’ve low flu vaccination protection in 2022. Vaccines can reverse this example,” he famous. physician.

Espírito Santo shows the possibility of an increase in cases of respiratory syndrome
Espírito Santo reveals the opportunity of a rise in instances of respiratory syndrome. Credit: InfoGripe | Fiocruz

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