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Acesso livre
Acesso livre

Covid-19 (Temas de Saúde Pública)

M-A | Pacientes psiquiátricos têm risco aumentado de hospitalização e morte por COVID-19.

26 Jul, 2021 | 10:20h

Comunicado de imprensa: Psychiatric patients at increased risk of COVID-19 hospitalization and mortality – European College of Neuropsychopharmacology

Artigo original: Mental disorders and risk of COVID-19-related mortality, hospitalisation, and intensive care unit admission: a systematic review and meta-analysis – The Lancet Psychiatry


Estudo mostra que o teste de antígeno de fluxo lateral pode detectar, de modo rápido e acurado, a COVID-19 inicial em pacientes com sintomas gripais e pode ser uma alternativa plausível ao RT-PCR.

26 Jul, 2021 | 10:19h

Comparing the diagnostic accuracy of point-of-care lateral flow antigen testing for SARS-CoV-2 with RT-PCR in primary care (REAP-2) – EClinicalMedicine

Comunicado de imprensa: Lateral flow tests are 95% effective at detecting Covid-19 when used at the onset of symptoms – University of Oxford

Relacionado:

Interactive Infographic | Interpreting a lateral flow SARS-CoV-2 antigen test – “This calculator demonstrates how interpreting a covid-19 lateral flow device (LFD) result varies according to the pre-test probability, and the sensitivity and specificity of the LFD used”.

Rapid point-of-care tests for diagnosing COVID-19 infection: the latest Cochrane evidence

 

Comentário no Twitter (fio – clique para saber mais)

 


Vacinas contra COVID talvez cheguem aos países mais pobres somente em 2023 – “Especialistas afirmam que, em meio ao aumento da COVID na África, a promessa de vacinas vindo de nações mais ricas não é suficiente para acabar com a pandemia.”

26 Jul, 2021 | 10:15h

COVID vaccines to reach poorest countries in 2023 — despite recent pledges – Nature


OMS | Desigualdade vacinal prejudica a recuperação econômica global.

23 Jul, 2021 | 10:19h

Comunicado de imprensa: Vaccine inequity undermining global economic recovery – World Health Organization

Painel: Global Dashboard for Vaccine Equity

Comentários: Urgent need for COVID-19 vaccine equity – University of Oxford E COVID-19 Vaccine Inequity Undermines Global Economic Recovery  – Health Policy Watch

 

Comentário no Twitter (fio – clique para saber mais)

 


Perspectiva | “Challenge Trials” com o SARS-CoV-2 (quando pessoas saudáveis são expostas deliberadamente ao virus, para fins de pesquisa) – Estabelecendo um modelo durante uma pandemia em evolução.

23 Jul, 2021 | 10:17h

SARS-CoV-2 Human Challenge Studies — Establishing the Model during an Evolving Pandemic – New England Journal of Medicine

Relacionado: World’s first coronavirus “Human Challenge” study receives ethics approval in the UK (vários textos sobre o tema) E Are SARS-CoV-2 Human Challenge Trials Ethical? – “A clinical trial is underway in the UK in which young, healthy participants are exposed deliberately to SARS-CoV-2 to assess the viral inoculum needed to produce an infection and to test vaccine efficacy”.


Como a variante Delta atinge sua disseminação ultrarrápida – “A carga viral é cerca de 1.000 vezes maior em pessoas infectadas com a variante Delta do que nos infectados com a cepa original do coronavírus, de acordo com estudo feito na China.”

23 Jul, 2021 | 10:15h

How the Delta variant achieves its ultrafast spread – Nature

Estudo original: Study shows the viral loads in the Delta infections are ~1000 times higher than those in the earlier strain infections on the day when viruses are firstly detected.


O que são as variantes Delta, Gama, Beta e Alfa da Covid?

23 Jul, 2021 | 10:14h

What are the Delta, Gamma, Beta and Alpha Covid variants? – BBC

Relacionado: Increased transmissibility and global spread of SARS-CoV-2 variants of concern – “Estimated transmissibility increases of alpha 29% (95% CI: 24–33), beta 25% (95% CI: 20–30), gamma 38% (95% CI: 29–48) & delta 97% (95% CI: 76–117)”. E WHO renames COVID-19 variants with the Greek alphabet (i.e., Alpha, Beta, Gamma, etc), making them simple, easy to say and remember. The naming system aims to prevent calling COVID-19 variants by the places where they are detected, which is stigmatizing & discriminatory.


A variante Lambda: ela é mais infecciosa e escapa das vacinas? Virologista explica.

23 Jul, 2021 | 10:14h

The Lambda variant: is it more infectious, and can it escape vaccines? A virologist explains – The Conversation

Relacionado: Lambda, the Newest WHO Variant of Interest, is Now in 29 Countries – Health Policy Watch


Estudo mostra que vacinas da AstraZeneca e da Pfizer são eficazes contra a variante Delta, mas são necessárias as duas doses.

22 Jul, 2021 | 13:08h

Effectiveness of Covid-19 Vaccines against the B.1.617.2 (Delta) Variant – New England Journal of Medicine

Comentários: Study Finds Pfizer And AstraZeneca Vaccines Effective Against The Delta Variant — As Long As You Get Both Doses – Forbes E Pfizer’s COVID-19 vaccine works very well against the Delta variant — but only after 2 doses – Insider

Relacionado: [Preprint] 2 doses of Covid vaccines (Pfizer-BioNTech or Oxford-AstraZeneca) highly effective against hospitalization from Delta variant. E Reduced sensitivity of SARS-CoV-2 variant Delta to antibody neutralization. E Should I get my second AstraZeneca dose? Yes, it almost doubles your protection against Delta.

 

Comentário no Twitter

 


Anticorpos contra COVID-19 persistem por, pelo menos, 9 meses após a infecção – “98,8% das pessoas infectadas em fevereiro/março mostraram nível detectáveis de anticorpos em novembro.”

22 Jul, 2021 | 13:07h

Comunicado de imprensa: COVID-19 antibodies persist at least nine months after infection – Imperial College London

Estudo original: SARS-CoV-2 antibody dynamics and transmission from community-wide serological testing in the Italian municipality of Vo’ – Nature Communications


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