Corona virus or Covid-19 has three different variants. It evolved and mutated into three different types, found by researchers and geneticists from Britain and Germany.

Over time, corona virus or Covid-19 has evovled into types A, B and C, and are classified as such.

Type A: was closest to the corona virus discovered in bats and although found in Wuhan, the central China city that was the epicentre of the initial outbreak, was not the primary type there.
Type A was also found in Americans who had lived in Wuhan, and in other patients diagnosed in the United States and Australia.

Type B: the most common variant found in Wuhan was type B, though this appeared not to have spread much beyond East Asia before mutating, which the researchers said was probably due to some form of resistance to it outside that region.

Type C: was the variant most found often in Europe based on cases in France, Italy, Sweden and England. It had not been detected in any patients in mainland China, although it had been found in samples from Singapore, Hong Kong and South Korea.