Infectologia
Covid-19: quão eficazes são as vacinas contra a variante Delta?
10 Ago, 2021 | 12:46hCovid-19: How effective are vaccines against the delta variant? – The BMJ
[Preprint] Estudo randomizado fase 1/2 | Uma dose de reforço é imunogênica e será necessária para idosos que completaram o esquema de duas doses com CoronaVac.
10 Ago, 2021 | 12:44h
Comentário no Twitter
6-month follow-up of people aged 60+ in early trials of Sinovac's CoronaVac in China. Authors conclude antibodies dropped too far, but a booster dose improved signs of immunity https://t.co/ooQ5M9gJZC (Preprint)
— Hilda Bastian, PhD (@hildabast) August 9, 2021
Uma especialista da OMS explica por que acredita que a corrida por doses de reforço contra a Covid-19 é prematura.
10 Ago, 2021 | 12:43hA WHO expert explains why she believes the rush for Covid-19 boosters is premature – STAT
Comentário no Twitter
Must read interview on rich nations rushing into booster doses
Dr @Kate_L_OBrien by @HelenBranswell @statnews
"We really have huge inequity right now in just getting primary doses to people. Does a third dose need to be given?"https://t.co/pRhYwINuKf pic.twitter.com/YQS6Nj0Hyi
— Madhu Pai, MD, PhD (@paimadhu) August 9, 2021
“Breakthrough infection” (infecção em indivíduos vacinados) não significa que as vacinas contra COVID estejam falhando.
10 Ago, 2021 | 12:40h‘Breakthrough’ Infections Do Not Mean COVID Vaccines Are Failing – Scientific American
Comentário no Twitter
Clear, thorough, reassuring story for people who are worried about breakthrough infections after COVID vaccinations. Even with Delta variant, vaccinated people are extremely well protected & unvaccinated people are extremely vulnerable https://t.co/IT0gCTas56 @ejwillingham @sciam
— Laura Helmuth (@laurahelmuth) August 4, 2021
Um vasto estudo sobre tratamento contra COVID-19, organizado pela OMS, está recomeçando. Estes são os medicamentos em análise.
10 Ago, 2021 | 12:39hA giant trial of COVID-19 treatments is restarting. Here are the drugs it’s betting on – Science
Conteúdo relacionado: WHO Solidarity trial to restart with focus on drugs that act on immune responses caused by Covid-19.
Estudo associa vacinas contra COVID a menores taxas de transmissão.
10 Ago, 2021 | 12:37hStudy ties COVID vaccines to lower transmission rates – CIDRAP
Estudo randomizado | Segurança e imunogenicidade de esquemas de segunda dose heterólogos vs. homólogos de vacinas contra COVID-19 com vetor adenoviral vs. de mRNA.
9 Ago, 2021 | 11:40hComentário convidado: Optimising SARS-CoV-2 vaccination schedules – The Lancet
Conteúdo relacionado: Another study shows increased immune response with heterologous Oxford-AstraZeneca/mRNA vaccination (vários artigos sobre o tema)
Comentário no Twitter
Just published @TheLancet
A randomized mix and match trial of AZ and Pfizer vaccination in >800 people shows that mixing is safe and can engender at least as good, if not better, immune response https://t.co/V40Dy59Ia8 by @XinxueLiu and colleagues pic.twitter.com/tKl59LFz4i— Eric Topol (@EricTopol) August 6, 2021
Estudo do CDC mostrou um risco reduzido de reinfecção por SARS-CoV-2 após vacinação contra Covid-19.
9 Ago, 2021 | 11:37h
Comentários no Twitter
This is non randomized. The two biases are:
1. Behavior among those who got vaccinated likely different than those who don't
2. Likely those who didn't tested more aggressively
I would not cite this as many are doinghttps://t.co/rSkBC37uq0
— Vinay Prasad, MD MPH 🎙️📷 (@VPrasadMDMPH) August 7, 2021
Study shows that full #COVIDVaccination ⬇️ likelihood of being re-infected with #COVID19 compared to those who were previously had COVID but were not vaccinated (risk ⬆️ 2.3 fold)#GetVaccinated even if you have had COVID previouslyhttps://t.co/3dF3XPxwYp@fascinatorfun pic.twitter.com/ip6zTvNN86
— Kamlesh Khunti (@kamleshkhunti) August 7, 2021
Infográfico interativo | Dados mostram como são raras as infecções graves por Covid em indivíduos plenamente vacinados.
9 Ago, 2021 | 11:36hData shows how rare severe breakthrough Covid infections are – NBC News
Comentário no Twitter
Very good interactive infographic for impact of vaccination in 2021 by state https://t.co/HAfYYPX9FI by @NBCNews @seenigel @ChicagoEl @pdrbarquinha @jiachuanwu @NBCNewsGraphics
Here for California: Hospitalizations, deaths and infections pic.twitter.com/83Hxl2x2gm— Eric Topol (@EricTopol) August 7, 2021
M-A | Taxas de transmissão do SARS-CoV-2 nos diversos ambientes – “Contatos domiciliares mostraram os maiores índices de transmissão, com taxas de transmissão secundária de 21,1%.”
9 Ago, 2021 | 11:35h
Comentário no Twitter
SARS-CoV-2 setting-specific transmission rates: a systematic review and meta-analysis
Households highest transmission rates, pooled SAR~21.1%. Contacts at social events~5.9%. Workplaces~1.9%. Age gradient for transmission potential in h/hold context. https://t.co/m27kkDrTgy
— Andrew Lee (@andrewleedr) March 10, 2021