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Acesso livre

Vacinas

Relatório do CDC | Vacina da Moderna está associada a alta efetividade (93%) contra hospitalização por Covid-19 em comparação às vacinas da Pfizer (88%) e da J&J (71%).

20 Set, 2021 | 13:59h

Comparative Effectiveness of Moderna, Pfizer-BioNTech, and Janssen (Johnson & Johnson) Vaccines in Preventing COVID-19 Hospitalizations Among Adults Without Immunocompromising Conditions — United States, March–August 2021 – CDC Morbidity and Mortality Weekly Report

Comentários:

Moderna’s vaccine is the most effective, but Pfizer and J&J also protect well, CDC-led study says – CNN

CDC: Moderna COVID vaccine most protective against hospital cases – CIDRAP

CDC data: Moderna vaccine has edge in preventing COVID-19 hospitalizations – UPI

 

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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”.


Opinião | Vacinar o mundo antes de começar as doses de reforço contra COVID – “Menos de 0,5% das doses de vacina foram distribuídas a pessoas de países de baixa renda.”

20 Set, 2021 | 13:53h

Vaccinate the World before Starting COVID Booster Shots – Scientific American

Conteúdo relacionado: 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.


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


Terceira dose: Reino Unido oferece doses de reforço da vacina contra COVID para maiores de 50 anos de idade.

17 Set, 2021 | 12:40h

Third shot: UK to offer COVID booster jabs to over 50s – Associated Press


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 | Prevenção da transmissão de hospedeiro para hospedeiro através das vacinas contra SARS-CoV-2.

17 Set, 2021 | 12:09h

Prevention of host-to-host transmission by SARS-CoV-2 vaccines – The Lancet Infectious Diseases

Conteúdos relacionados:

Study ties COVID vaccines to lower transmission rates.

Effect of Vaccination on Household Transmission of SARS-CoV-2 in England – “the likelihood of household transmission was approximately 40 to 50% lower in households of index patients who had been vaccinated 21 days or more before testing positive than in households of unvaccinated index patients”.

Study in England showed one dose of COVID-19 vaccine can cut household transmission by up to half – This protection is on top of the reduced risk of a vaccinated person developing symptomatic infection, which is around 60 to 65% after the first dose

Covid-19 vaccination prevents transmission from vaccinated to unvaccinated household members.


Relatório do CDC mostra que pessoas não vacinadas são 11 vezes mais propensas a morrer de COVID-19.

17 Set, 2021 | 12:05h

Unvaccinated People Are 11 Times More Likely To Die Of COVID-19, New Research Finds – NPR

Estudo original: Monitoring Incidence of COVID-19 Cases, Hospitalizations, and Deaths, by Vaccination Status — 13 U.S. Jurisdictions, April 4–July 17, 2021 – CDC Morbidity and Mortality Weekly Report

 

Comentário no Twitter

 


A intrincada história das vacinas de mRNA.

17 Set, 2021 | 12:02h

The tangled history of mRNA vaccines – Nature

Conteúdos relacionados:

mRNA vaccines for infectious diseases: principles, delivery and clinical translation.

After COVID-19 successes, researchers push to develop mRNA vaccines for other infectious diseases and cancer.

 

Comentário no Twitter

 


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