Health
How effective are COVID-19 vaccines? Here’s what the stats mean … and what they don’t – The Conversation Africa
Vaccine efficacy is usually expressed as a percentage, but what is it actually measuring? Statisticians explain what the numbers…
The COVID-19 pandemic brought the term vaccine efficacy into the public eye. But what do the efficacy numbers mean?
For example, at first glance, a vaccine efficacy of 70 per cent might suggest that in 30 per cent of cases, people are not protected by…
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