The evolution of the coronavirus is so rapid that the concept of herd immunity is now a distant memory.
The hospital group found a reason for concern in addition to unsupported studies.
Hoe gemaak met al die rasende kommentaar wat jou waarsku teen die entstof? Hier is wat hulle behoort te weet.
There is a lot of speculation whether the coronavirus has escaped from a lab. Although highly unlikely, tracing its origins are tricky.
After the coronavirus mutated this week and jumped back from mines to humans anew, there is panic about whether we are dealing with another danger. But should we worry? And what can we do to avoid such a situation?