from Sputnik News:
After having long insinuated that China was responsible for the COVID-19 pandemic due to risky experiments at a Wuhan biolab, scientists at an American lab have created a mutant strain that is by far the most infectious and deadliest ever seen.
A group of researchers working at Boston University have created a new type of SARS-CoV-2, the virus that causes COVID-19, that is far more virulent than any previous strain.