Covid-19 (Temas de Saúde Pública)
O que as pessoas vacinadas devem saber sobre exposição à Covid-19, testes e mais.
20 Jul, 2021 | 10:53hWhat vaccinated people should know about Covid-19 exposure, tests and more – CNN
Especialistas recomendam doses de vacina contra a Covid para algumas pessoas menores de 18 anos no Reino Unido – “A sugestão é que a vacina da Pfizer seja oferecida a jovens entre 16 e 18 anos que façam parte de grupos prioritários ou que vivam com pessoas cujo sistema imunológico esteja debilitado.”
20 Jul, 2021 | 10:52hComentários: Experts recommend Covid jabs for some under-18s in UK – BBC
Fauci afirma que a teoria da origem natural do coronavírus ainda é a mais provável.
19 Jul, 2021 | 10:01hFauci says natural origins theory of coronavirus is still the most likely – CNN
Artigo relacionado (preprint): The Origins of SARS-CoV-2: A Critical Review – Zenodo
Ver também: A Group of Scientists Presses a Case Against the Lab Leak Theory of Covid – The New York Times (poucos artigos gratuitos por mês) E Leading scientists push back against Wuhan lab leak theory – The Age
Relacionado: Opinion | The Covid-19 lab leak theory is a tale of weaponized uncertainty.
CDC alerta que as vacinas contra Covid-19 podem não proteger pessoas imunocomprometidas – “O CDC está investigando pesquisas em andamento sobre a possibilidade de pacientes imunocomprometidos terem benefício com uma dose adicional.”
19 Jul, 2021 | 09:59hCDC warns Covid-19 vaccines might not protect people who are immunocompromised – CNN
Estudo | A análise de várias amostras de saliva agrupadas é uma estratégia efetiva e de baixo custo na vigilância da Covid-19 em escolas e universidades e permite, de modo rápido, avaliar a transmissão e ajustar os protocolos de prevenção.
19 Jul, 2021 | 09:59hRelacionado: Pooling of Samples for Testing for SARS-CoV-2 in Asymptomatic People E Implementation of a Pooled Surveillance Testing Program for Asymptomatic SARS-CoV-2 Infections on a College Campus — Duke University, Durham, North Carolina, August 2–October 11, 2020 – CDC Morbidity and Mortality Weekly Report
Por que um grande estudo sobre ivermectina para Covid-19 foi excluído da revista onde foi publicado?
16 Jul, 2021 | 10:01hWhy Was a Major Study on Ivermectin for COVID-19 Just Retracted? – Grifter Analysis and Review
Ver também: Huge study supporting ivermectin as Covid treatment withdrawn over ethical concerns – The Guardian E Some problems in the dataset of a large study of Ivermectin for the treatment of Covid-19 – Nick Brown’s Blog E Is Ivermectin for Covid-19 Based on Fraudulent Research? – Gideon M-K; Health Nerd
Comentário no Twitter (fio – clique para saber mais)
So, one of the biggest studies to date on ivermectin for COVID-19 has issues significant enough that, if not fraud, are so serious that it invalidates the study without further explanation
I promised a thread
Here we go 1/n https://t.co/L9QOChmGtA
— Health Nerd (@GidMK) July 16, 2021
Perspectiva | Como evitar uma futura injustiça de vacinas.
16 Jul, 2021 | 09:59hAverting Future Vaccine Injustice – New England Journal of Medicine
Comentário no Twitter
As high-income countries have secured much of the #Covid19vaccine supply, many low-income countries have barely begun the immunization process. We need political courage to end vaccine injustice now and political vision to negotiate rules for averting future inequities.
— NEJM (@NEJM) July 15, 2021
Vacinação heteróloga com doses da Oxford–AstraZeneca e da Moderna induz aumento nos níveis de anticorpos neutralizantes em comparação a 2 doses da vacina da Oxford–AstraZeneca.
16 Jul, 2021 | 09:58hHeterologous ChAdOx1 nCoV-19 and mRNA-1273 Vaccination – New England Journal of Medicine
Relacionado: [Preprint] Mixing Covid jabs has good immune response, study finds – “The Com-Cov trial looked at the efficacy of either two doses of Pfizer, two of AstraZeneca, or one of them followed by the other. All combinations worked well, priming the immune system”. E Phase 2 RCT: Immunogenicity and reactogenicity of a Pfizer-BioNTech booster in patients that have received a single dose of AstraZeneca vaccine – “BNT162b2 (Pfizer) given as a second dose in individuals prime vaccinated with ChAdOx1-S (AstraZeneca) induced a robust immune response, with an acceptable and manageable reactogenicity profile”. E RCT: Mixing 2 different Covid vaccines is associated with increased risk of side effects.
Comentário no Twitter
Health care workers who had received a dose of ChAdOx1 nCoV-19 were offered either ChAdOx1 nCoV-19 or mRNA-1273 9 to 12 weeks later. Levels of S-specific and RBD-specific IgG increased by a factor of 5 after ChAdOx1 nCoV-19 and by a factor of 115 to 125 after mRNA-1273.
— NEJM (@NEJM) July 14, 2021
Vacinação heteróloga com doses da Oxford–AstraZeneca e da BioNTech/Pfizer induz aumento nos níveis de anticorpos neutralizantes em comparação a 2 doses da vacina da Oxford–AstraZeneca.
16 Jul, 2021 | 09:57hHeterologous ChAdOx1 nCoV-19 and mRNA-1273 Vaccination – New England Journal of Medicine
Relacionado: [Preprint] Mixing Covid jabs has good immune response, study finds – “The Com-Cov trial looked at the efficacy of either two doses of Pfizer, two of AstraZeneca, or one of them followed by the other. All combinations worked well, priming the immune system”. E Phase 2 RCT: Immunogenicity and reactogenicity of a Pfizer-BioNTech booster in patients that have received a single dose of AstraZeneca vaccine – “BNT162b2 (Pfizer) given as a second dose in individuals prime vaccinated with ChAdOx1-S (AstraZeneca) induced a robust immune response, with an acceptable and manageable reactogenicity profile”. E RCT: Mixing 2 different Covid vaccines is associated with increased risk of side effects.
Comentário no Twitter
Mix and match vaccines?
2 doses AZ vs AZ and then Pfizer:
"BNT162b2 induced significantly higher frequencies of spike-specific CD4+ and CD8+ T cells and, in particular, high titers of neutralizing antibodies against the B.1.1.7, B.1.351 and P.1 variants" https://t.co/53J2erWVMy pic.twitter.com/aEmqMlhEar— Eric Topol (@EricTopol) July 14, 2021
Mortes por COVID são “incrivelmente raras” entre crianças.
16 Jul, 2021 | 09:56hDeaths from COVID ‘incredibly rare’ among children – Nature