Bharat Biotech has reported around 81% interim efficacy for Covaxin, its vaccine against the novel coronavirus infection, in large-scale human clinical trials.
What does the efficacy of a vaccine mean?
Efficacy is a measure of how much the shot protects people against a virus or bacteria, compared with the situation in which they were not vaccinated. Efficacy looks at the ability of the vaccine to protect the inoculated population using various parameters ranging from the ability of the shot to prevent mild to severe symptoms from showing even if you have been infected, to preventing you from getting infected with the disease altogether.
In the case of Covid-19 vaccines, pharma companies have primarily focussed on bringing down the number of symptomatic cases even if youre infected with SARS-CoV-2, you may not present with the symptoms and fall as sick as you would have without the vaccine.
Bharat Biotech, through its phase 3 clinical trials involving 25,800 volunteers across the country, has also focussed on understanding Covaxins efficacy in preventing symptomatic, including severely symptomatic, Covid-19 cases.
https://indianexpress.com/article/explained/bharat-biotechs-covaxin-has-around-81-efficacy-what-does-this-mean-for-india-7212855/
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Bharat Biotech has reported around 81% interim efficacy for Covaxin, its vaccine against the novel coronavirus infection, in large-scale human clinical trials. What does the efficacy of a vaccine mean? Efficacy is a measure of how much the shot protects people against a virus or bacteria, compared with the situation in which they were not vaccinated. Efficacy looks at the ability of the vaccine to protect the inoculated population using various parameters ranging from the ability of the shot to prevent mild to severe symptoms from showing even if you have been infected, to preventing you from getting infected with the disease altogether. In the case of Covid-19 vaccines, pharma companies have primarily focussed on bringing down the number of symptomatic cases even if youre infected with SARS-CoV-2, you may not present with the symptoms and fall as sick as you would have without the vaccine. Bharat Biotech, through its phase 3 clinical trials involving 25,800 volunteers across the country, has also focussed on understanding Covaxins efficacy in preventing symptomatic, including severely symptomatic, Covid-19 cases. https://indianexpress.com/article/explained/bharat-biotechs-covaxin-has-around-81-efficacy-what-does-this-mean-for-india-7212855/