Acesso livre
Acesso livre

Alergia e Imunologia

Um painel da FDA afirma que somente americanos de alto risco e os maiores de 65 anos deveriam tomar as doses de reforço contra Covid.

20 Set, 2021 | 13:56h

An FDA Panel Says Only High-Risk Americans And Those 65+ Should Get COVID Boosters – NPR

Ver também:

FDA advisory panel recommends booster doses of Covid-19 vaccine only for older and high-risk Americans – STAT

5 reasons why FDA advisers did not recommend Covid-19 booster shots for everyone – CNN

Top doctors say not so fast to Biden’s boosters-for-all plan – Associated Press

Conteúdos relacionados:

An observational study in Israel suggests additional protection from a 3rd dose of the Pfizer vaccine in individuals 60 years of age or older.

Third shot: UK to offer COVID booster jabs to over 50s.

COVID-19 vaccine efficacy does not support boosters for general population, review concludes.

COVID vaccine effects wane over time but still prevent death and severe illness.

What’s the evidence for COVID-19 booster shots?

WHO appeals for countries to postpone COVID-19 vaccine boosters until 2022 to prioritize vaccinating the most at-risk people around the world who are yet to receive their first dose.

AstraZeneca bosses warn against rush for boosters – “giving the most vulnerable, who may not have built up a full immune response from the first two, a third, top-up dose is “sensible”. But any decision to give a third, booster jab “to large swathes of the population”, to extend their protection from the first two, must be based on clinical data”.

Imunidade conferida pela vacina contra COVID está caindo: o quanto isso importa? – “Enquanto os debates sobre as doses de reforço se acirram, o que se sabe sobre a duração da imunidade baseada em vacina ainda está em evolução.”

20 Set, 2021 | 13:51h

COVID vaccine immunity is waning — how much does that matter? – Nature

Série de casos | Trombocitopenia induzida por vacina com cefaleia grave pode preceder uma trombose sinusal venosa cerebral em vários dias – Pacientes com cefaleia grave 5 a 20 dias depois de tomarem vacina com vetor de adenovírus contra Covid-19 devem relizar teste para trombocitopenia e níveis de D-dímero e, se disponível, teste para anticorpo anti-PF4-heparina IgG.

17 Set, 2021 | 12:44h

Vaccine-Induced Thrombocytopenia with Severe Headache – New England Journal of Medicine

 

Comentário no Twitter

 

Estudo observacional em Israel sugere proteção adicional da terceira dose da vacina da Pfizer em pessoas com mais de 60 anos de idade.

17 Set, 2021 | 12:42h

Protection of BNT162b2 Vaccine Booster against Covid-19 in Israel – New England Journal of Medicine

Efeitos da vacina contra COVID diminuem ao longo do tempo, mas continuam prevenindo morte e doença grave.

17 Set, 2021 | 12:39h

COVID vaccine effects wane over time but still prevent death and severe illness – The Conversation

Conteúdos relacionados:

Perspective | What we actually know about waning immunity.

Another study shows Pfizer mRNA vaccine immunity is reduced over time.

[Press release – not published yet] Study shows vaccine protection wanes over time, but vaccines still offer good protection against severe disease.

Studies: COVID vaccine protection waning against infection but not hospitalization.

Pfizer says it’s time for a Covid booster; FDA and CDC say not so fast.

Revisão conclui que a eficácia da vacina contra COVID-19 não dá suporte a doses de reforço para a população geral.

14 Set, 2021 | 14:31h

Comunicado de imprensa: COVID-19 vaccine efficacy does not support boosters for general population, review concludes – The Lancet

Artigo original: Considerations in boosting COVID-19 vaccine immune responses – The Lancet

Comentários:

FDA experts among group opposing US booster shot plan – Associated Press

FDA vaccine regulators argue against Covid-19 vaccine boosters in new international review – STAT

Global experts pan wider use of COVID vaccine booster dose – CIDRAP

Expert reaction to viewpoint article on COVID-19 booster vaccines for general populations – Science Media Centre

Boosters Are ‘Not Appropriate’ – Reach Unvaccinated First – Health Policy Watch

Data Doesn’t Support Need for COVID-19 Vaccine Boosters: Experts – HealthDay

In a new review, some F.D.A. scientists and others say boosters aren’t needed for the general population. – The New York Times

Qual é a evidência para as doses de reforço contra COVID-19?

12 Set, 2021 | 22:23h

What’s the evidence for COVID-19 booster shots? – Canadian Medical Association Journal

Vacina indiana de DNA contra COVID é a primeira no mundo – mais estão por vir.

12 Set, 2021 | 21:50h

India’s DNA COVID vaccine is a world first – more are coming – Nature

Infecções por COVID podem criar uma imunidade mais potente do que as vacinas – mas isso não significa que se deve tentar o contágio.

12 Set, 2021 | 21:49h

COVID infections may give more potent immunity than vaccines – but that doesn’t mean you should try to catch it – The Conversation

Estudo original e comentário: [Preprint] Observational data suggests natural immunity after a SARS-CoV-2 infection confers longer lasting and stronger protection compared to vaccine-induced immunity.

Perspectiva | O que de fato se sabe sobre a diminuição da imunidade contra Covid-19 ao longo do tempo.

12 Set, 2021 | 21:47h

What We Actually Know About Waning Immunity – The Atlantic

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