Acesso livre
Acesso livre

Vacinas

Editorial | Vacinas contra COVID-19 para crianças – “Embora seja verdade que a maioria das crianças tenham doença assintomática ou leve, algumas ficarão bastante doentes e um pequeno número irá a óbito. Este é o motivo de crianças serem vacinadas contra gripe, meningite, catapora e hepatite.”

19 Nov, 2021 | 13:17h

COVID-19 vaccines for children – Science

Conteúdo relacionado: Review: Should children under 12 years of age be vaccinated against COVID-19?

 

Comentário no Twitter

 

Perspectiva | O futuro da vacinação contra SARS-CoV-2 – Lições da Influenza.

19 Nov, 2021 | 13:12h

The Future of SARS-CoV-2 Vaccination — Lessons from Influenza – New England Journal of Medicine

Correlação entre o aumento de infecções por SARS-CoV-2 e o tempo de vacinação.

19 Nov, 2021 | 13:11h

Correlation of SARS-CoV-2-breakthrough infections to time-from-vaccine – Nature Communications

Comentário: Long-term effectiveness of Pfizer/BioNTech two-dose regimen mRNA vaccine – News Medical

China’s COVID vaccines have been crucial — now immunity is waning.

[Preprint] Breakthrough SARS-CoV-2 infections in 620,000 U.S. Veterans, February 1, 2021 to August 13, 2021 – “Vaccine protection declined by mid-August 2021, decreasing from 91.9% in March to 53.9%”.

Observational study in Qatar showed the effectiveness of Pfizer vaccine against any SARS-CoV-2 infection dropped to 20% in months 5 through 7 after the second dose, but effectiveness against severe Covid-19 remained high.

Cohort study: Pfizer vaccine effectiveness against any infections declined from 88% during the first month after full vaccination to 47% after 5 months. Vaccine effectiveness against hospital admissions remained high; 87% within 1 month, and 88% at 5 months after full vaccination, with no significant waning.

Editorial | Covid-19 vaccination: evidence of waning immunity is overstated.

COVID vaccine immunity is waning — how much does that matter? – “As debates about booster shots heat up, what’s known about the duration of vaccine-based immunity is still evolving”.

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

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.

 

Comentário no Twitter

 

Opinião | Com 128 vacinas contra Covid em desenvolvimento clínico, não se sabe se as aprovadas/autorizadas são as melhores.

19 Nov, 2021 | 13:09h

With 128 Covid vaccines in clinical development, we don’t know if the approved/authorized ones are the best ones – STAT

Revisão | Crianças com menos de 12 anos deveriam ser vacinadas contra COVID-19?

19 Nov, 2021 | 12:37h

Should children be vaccinated against COVID-19? – Archives of Disease in Childhood

 

Comentário do autor no Twitter (fio – clique para saber mais)

 

Covid: no Reino Unido, crianças só devem tomar a dose da vacina 12 semanas depois de uma infecção.

19 Nov, 2021 | 12:35h

Covid: Children told to delay jab for 12 weeks after infection – BBC

Relatório original: Joint Committee on Vaccination and Immunisation (JCVI) advice on COVID-19 vaccination in people aged 16 to 17 years: 15 November 2021

Grandes questões sobre as doses de reforço das vacinas contra Covid-19 – “Desde o porquê até para quem, ainda precisamos de muitas respostas sobre as doses de reforço.”

17 Nov, 2021 | 13:06h

The big questions about Covid-19 booster shots – Vox

 

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Revisão | Trombocitopenia trombótica imune induzida por vacina.

16 Nov, 2021 | 12:46h

Vaccine-induced immune thrombotic thrombocytopenia – The Lancet Haematology

Conteúdos relacionados:

Vaccine induced immune thrombocytopenia and thrombosis: summary of NICE guidance.

Clinical features of vaccine-induced immune thrombocytopenia and thrombosis.

Review: Clinical characteristics and pharmacological management of COVID-19 vaccine–induced immune thrombotic thrombocytopenia with cerebral venous sinus thrombosis.

Vaccine-induced immune thrombotic thrombocytopenia: what we know and do not know.

Very rare cases of thrombosis with thrombocytopenia syndrome (TTS) after AstraZeneca vaccine: a global safety database analysis – the estimated rate of TTS after the first dose was 8.1 per million vaccinees; after the second dose, the estimated rate was 2.3 per million vaccinees. (vários artigos e fontes sobre o tema)

 

Comentário no Twitter

 

Covid: Áustria impõe lockdown a não vacinados.

16 Nov, 2021 | 12:44h

Covid: Austria introduces lockdown for unvaccinated – BBC

Ver também: Austria orders nationwide lockdown for the unvaccinated – Associated Press

Covid-19: produção global de vacinas é desordenada e a escassez é decorrente de outros fatores além da acumulação por alguns países.

16 Nov, 2021 | 12:43h

Covid-19: global vaccine production is a mess and shortages are down to more than just hoarding – The BMJ

 

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