Pelo pouco que sei depende da doenca. A da polio tem 99%
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Covid-19
- Iniciador de Tópicos ixnay
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Precisas de pelo menos 50% para aprovação, não?
E atenção que esta vacina servirá de base para os centenas de Coronavírus que estão aí à espreita.
Última edição:
Bem, pelo que estão a dizer estamos a falar duma grande eficácia então.
Boas notícias.
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Boas notícias.
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Isto é apenas e só ridículo e humilhante para a DGS
Esta cientista indiana explica bem isso:
Why life won’t go back to normal even after a COVID-19 vaccine, with Dr Gagandeep Kang
Sandip talks to Dr Gagandeep Kang about what we’re really looking for in a COVID-19 vaccine, and clears up some burning coronavirus concerns.
indianexpress.com
Diz ela:
"There is practically no vaccine that is 100 percent efficacious. Some of the best vaccines we have, like measles, are 90 percent plus. The malaria vaccine that has only about 30 percent efficacy. So while we would all like a perfect vaccine, sometimes we have to work with vaccines that are less than perfect. And the 50 percent efficacy is actually not too bad for a respiratory virus. Most of the influenza vaccines that we use vary from year to year from not working at all to having 60- 65 percent efficacy against certain strains. "
E respondendo à tua questão:
" What WHO has set as a benchmark and the FDA has done exactly the same as well, is to say that we need a 50 percent point estimate of efficacy. Which means that in the trial, it must be 50 percent. But around that 50 percent, which is the result from the trial setting, is an understanding that when we use the vaccine in other populations, larger groups, we may not find exactly the same result. So 50 percent is the middle of a range. And that range for both FDA and WHO is a minimum level of 30 percent protection. So though we will get an estimate of 50 percent in the trial, actually, the true efficacy of the vaccine may be anywhere from 30 percent to 70 percent. "
E só mais isto antes de se atirarem foguetes e voltarmos todos à vida normal:
So in that case, to go back to the original question, if it’s true impact is about 30 percent, we will still be needing to practice social distancing and masks and all of those things we are doing now?
Dr Gagandeep Kang
Absolutely, because until we have something that can act as a readout to know whether a person is protected or not. This is called a correlate of protection. It may be an antibody level. We won’t know for sure among all the people who have received vaccine, which ones are protected and which ones are not. So life is not going to go back to normal the minute we have a vaccine. We will continue to need to be careful the same way that we are doing now.
Última edição:
Quem dera que isso seja verdade, era um milagre..
A G Freitas e a Temido manterem os lugares depois de tanto tempo a fazer merda é um fenómeno.
os chineses ficam estáticos por terem liberdade de continuar com os mercados de venda de morcego e pangolim
ninguém diria
sim, exatamente
seria das melhores prendas de natal da história recente da humanidade
A vacina da AstraZeneca tambem aponta em termos preliminares para percentagens a rondar os 90%
Obviamente que depende do sistema imunitario de cada individuo.
Vamos ver na efectividade se as vacinas resolvem ou se tornam ineficazes com a continua mutação
Obviamente que depende do sistema imunitario de cada individuo.
Vamos ver na efectividade se as vacinas resolvem ou se tornam ineficazes com a continua mutação
Esta cientista indiana explica bem isso:
Why life won’t go back to normal even after a COVID-19 vaccine, with Dr Gagandeep Kang
Sandip talks to Dr Gagandeep Kang about what we’re really looking for in a COVID-19 vaccine, and clears up some burning coronavirus concerns.
Diz ela:
"There is practically no vaccine that is 100 percent efficacious. Some of the best vaccines we have, like measles, are 90 percent plus. The malaria vaccine that has only about 30 percent efficacy. So while we would all like a perfect vaccine, sometimes we have to work with vaccines that are less than perfect. And the 50 percent efficacy is actually not too bad for a respiratory virus. Most of the influenza vaccines that we use vary from year to year from not working at all to having 60- 65 percent efficacy against certain strains. "
E respondendo à tua questão:
" What WHO has set as a benchmark and the FDA has done exactly the same as well, is to say that we need a 50 percent point estimate of efficacy. Which means that in the trial, it must be 50 percent. But around that 50 percent, which is the result from the trial setting, is an understanding that when we use the vaccine in other populations, larger groups, we may not find exactly the same result. So 50 percent is the middle of a range. And that range for both FDA and WHO is a minimum level of 30 percent protection. So though we will get an estimate of 50 percent in the trial, actually, the true efficacy of the vaccine may be anywhere from 30 percent to 70 percent. "
E só mais isto antes de se atirarem foguetes e voltarmos todos à vida normal:
So in that case, to go back to the original question, if it’s true impact is about 30 percent, we will still be needing to practice social distancing and masks and all of those things we are doing now?
Dr Gagandeep Kang
Absolutely, because until we have something that can act as a readout to know whether a person is protected or not. This is called a correlate of protection. It may be an antibody level. We won’t know for sure among all the people who have received vaccine, which ones are protected and which ones are not. So life is not going to go back to normal the minute we have a vaccine. We will continue to need to be careful the same way that we are doing now.
Acho que já quase todos estamos cientes que não vamos voltar ao normal mal haja vacina.
Mas acredito que aos poucos se podem relaxar as medidas. Quando a % vacinada de um país for relativamente alta muitas medidas poderão ser relaxadas, acredito.
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A eficacia da vacina é medida pela capacidade de impedir a infecção certo?
Seria uma grande notícia. Tenho muita esperança nesta e na vacina de Oxford/AstraZeneca.
Penso que é a percentagem de pessoas vacinadas que desenvolve imunidade.
Ou seja não são infectadas...
È que mais importante que não serem infectadas é que as pessoas que sejam infectadas tenham uma forma benigna da doença ou seja sem mazelas.
Evitando o covid persistente.
Porque se a vacina conferir as pessoas não uma imunidade completa mas uma imunidade que permita terem uma infecção sem mazelas seria uma otima noticia
Mas até esta vacina (ou outra) chegar aos nossos corpos ainda vai demorar uns meses valentes.