Covid-19 evolving, say scientists

BEIJING: The Covid-19 has evolved into two major subtypes, according to latest research findings of Chinese scientists.

The two major subtypes are named L and S. The L type, covering 70% of the strains examined, is more aggressive and was more prevalent in the early stages of the outbreak. Instances of the S type, which is older and less aggressive, has increased in frequency lately, thus possibly explaining the disease’s slowing momentum in China.