Saúde Pública/Medicina Humanitária
[Preprint] Estudo mostra que as infecções por SARS-CoV-2 em indivíduos já vacinados (“breakthrough infections”) são menos transmissíveis que infecções por SARS-CoV-2 em indivíduos não vacinados.
23 Ago, 2021 | 13:23h
Comentário no Twitter (fio – clique para saber mais)
Did you hear vaccinated people with Delta “have just as much virus in their nose so are just as infectious as unvaccinated”?
Turns out vaccinated people have significantly less culturable virus present at the same Ct count
They are LESS INFECTIOUS 💥 https://t.co/OX0Ul0ntWc pic.twitter.com/3vDQSJ6j84
— Alasdair Munro (@apsmunro) August 22, 2021
Evidências reforçam que infecções por SARS-CoV-2 em indivíduos já vacinados (“breakthrough infections”) podem facilmente disseminar a variante Delta.
23 Ago, 2021 | 13:21hEstudo original: Shedding of Infectious SARS-CoV-2 Despite Vaccination when the Delta Variant is Prevalent – Wisconsin, July 2021 – medRxiv
Comentário no Twitter
The evidence that supports Delta breakthrough infections ability to spread (and why fully vaccinated people need to 😷 up)https://t.co/27NOf6mYCM @NatGeo by @Ecquis w/ studies and input by @GuptaR_lab and @KasenRiemersma
— Eric Topol (@EricTopol) August 20, 2021
Entre pacientes que recebem vacina de mRNA, sintomas clinicamente significativos são mais frequentes após a 2ª dose, após a 1ª dose em pacientes com infecção prévia por SARS-CoV-2 e naqueles que receberam a vacina da Moderna.
23 Ago, 2021 | 13:19h
Comentário no Twitter
New @JAMA_current paper says @moderna_Tx caused 2.3x the number of "significant" symptoms compared to @pfizer in a sample of 950 people.
Moderna also produced more antibodies. Raising the question of what a third dose, which produces still MORE, will do.https://t.co/drvhhsnpHo
— Alex Berenson (@AlexBerenson) August 16, 2021
Estudo laboratorial mostra que a estratégia de vacinação heteróloga AstraZeneca + Pfizer propicia uma imunogenicidade mais potente contra Covid comparada a estratégias homólogas AZ + AZ ou Pfizer + Pfizer.
23 Ago, 2021 | 13:16hComentário convidado: Heterologous ChAdOx1-nCoV19–BNT162b2 vaccination provides superior immunogenicity against COVID-19
Conteúdos relacionados:
Another study shows increased immune response with heterologous Oxford-AstraZeneca/mRNA vaccination (vários artigos sobre o tema)
Comentário no Twitter
NEW Research—Heterologous ChAdOx1 nCov-19–BNT162b2 immunisation w/ 10–12-week interval is well tolerated & improves immunogenicity vs homologous ChAdOx1 nCov-19 vax w/ 10–12-week interval & BNT162b2 vax w/ 3-week interval
Study from Prof Sander & co https://t.co/VAB54NokSi pic.twitter.com/wfeBsvoKhO
— The Lancet Respiratory Medicine (@LancetRespirMed) August 13, 2021
[Preprint] Transmissão de SARS-CoV-2 por aerossol em escolas: efetividade teórica de diferentes intervenções – “Intervenções combinadas (i.e., ventilação natural, máscaras e filtração HEPA) foram as mais eficazes (redução ≥ 30 vezes)”.
23 Ago, 2021 | 13:12hSARS-CoV-2 aerosol transmission in schools: the effectiveness of different interventions – medRxiv
Conteúdo relacionado: The right way to protect our children and return to in-person learning – CNN
Comentários no Twitter
Interesting modelling study for schools: (theoretically) most effective is open windows, then masks, then HEPA filter. Would be good to do real world tests though. https://t.co/MDFNqNNUI3 pic.twitter.com/xGSodClipO
— Paul Glasziou (@PaulGlasziou) August 21, 2021
This is not real evidence supporting real policy choices as they are really carried out in the real world.
Instead, this is theoretical bioplausibility spun into a full paper.
I hope folks can still tell the two aparthttps://t.co/znwtiaKZ2g
— Vinay Prasad, MD MPH 🎙️📷 (@VPrasadMDMPH) August 20, 2021
Vacina CoronaVac em idosos durante a epidemia de Covid-19 associada à variante Gama no Brasil – Efetividade foi de 46,8% contra doença sintomática, de 55,5% contra hospitalização e de 61,2% contra mortes.
23 Ago, 2021 | 13:10hEditorial: Real world effectiveness of covid-19 vaccines
Conteúdo relacionado: CoronaVac vaccine: its results are patchy, but the world can’t ignore its usefulness. (vários textos sobre o tema)
Dados observacionais do Canadá: Efetividade das vacinas de mRNA contra Covid-19 foi de 91% contra doença sintomática e de 98% contra hospitalização e mortes.
23 Ago, 2021 | 13:08hEditorial: Real world effectiveness of covid-19 vaccines
Série Lancet: calor e saúde.
23 Ago, 2021 | 13:03hPágina principal: Heat and health
Editorial: Health in a world of extreme heat
Ollie Jay: managing heat, improving health
Hot weather and heat extremes: health risks
Estimativa dos riscos relativos de causa específica da temperatura não ótima na mortalidade diária.
23 Ago, 2021 | 13:02hArtigo relacionado: Mortality risk attributable to high and low ambient temperature: a multicountry observational study – The Lancet
Comentário no Twitter
📣 This #GBDstudy new in @TheLancet in is the first comprehensive global assessment of disease burden due to non-optimal temperature exposure. #ClimateChange #Research #GlobalHealth https://t.co/AUqTFHkTZL
— Institute for Health Metrics and Evaluation (IHME) (@IHME_UW) August 20, 2021
Calor, frio e morte – Temperatura extrema é uma ameaça à saúde global.
23 Ago, 2021 | 13:01hHot, Cold, and Deadly – Think Global Health