Source: South China Morning PostEnshi was an enigma during China’s coronavirus outbreak.The city in western Hubei province recorded six Covid-19 cases per 100,000 residents. Elsewhere in Hubei, infection rates were between two and 20 times higher. Scientists had no clue why the coronavirus spared Enshi until speculation formed last year that the answer might be in its soil.A new study by Chinese scientists published this week supported the theory and found “human selenium levels may contribute to antioxidant, anti…Read More