Why are vaccinated people still being infected by Covid-19?
The headline of a news article said - Covid-19: 3 TTSH staff among new cases, including nurse who had received both doses of vaccine. The question is - why are vaccinated people still being infected by covid? The answer is - this is the manifestation of the efficacy rate. If the efficacy rate is 90%, it means that 10% can...
The Covid-19 vaccine is 95% efficacious?
We should disabuse ourselves that the vaccine is 95% efficacious. People still believe because they do not understand statistics. They think that having taken the vaccine, their chances of catching the virus is reduced by 95%. Thus, even if there are numerous reports of people being infected despite having taken the vaccine,...
Do not over react to the Covid-19 pandemic in India
The situation in India is bad. There has been a sharp increase in infection and death from covid. Many people in Singapore are worried that we can face the serious crisis that is happening in India. The experts in Singapore said that we should be concerned, but should not be over alarmed. I agree with this view. Here are the...
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