Scientists in Arizona have detected a mutation in a Coronavirus sample.
— Professor Karol Sikora (@ProfKarolSikora) May 5, 2020
Don't be alarmed- it has lost some of its potency.
When this happened in the SARS outbreak, it marked the beginning of the end.
Huge caveat - it's just 1 sample, we need to see if we can find it elsewhere.