mutation

The Atlantic says that the new coronavirus strain is a "huge danger." However, the virus already mutated early last year to become more infectious. There's no reason to panic yet.
The coronavirus has mutated to become more infectious. Does that mean it will become more or less lethal? And what implication does it have for a vaccine and herd immunity?
In the human body, there are roughly two trillion cell divisions every day. Molecular mechanisms to ensure that DNA is replicated properly are very accurate, but mistakes are inevitable. Most of the mistakes don't change anything but some cut the brake lines that control cell division -- and these can lead to the development of cancer cells. Dr. Chris Gerry explains, in Part 2 of his series on the complexities of cancer.
Now, another, recently-discovered mutant gene seems to be associated with a 38 percent increased risk of having a heart attack, in men at least. And the gene was found in about one-eighth of those men tested, making this quite an interesting and potentially highly important risk factor.