Doctors in India are warning against the practice of using cow dung in the belief it will ward off Covid-19, saying there is no scientific evidence for its effectiveness and that it risks spreading other diseases. The coronavirus pandemic has wrought devastation on India, with 22.66 million cases and 246,116 deaths reported so far. SNIP In the state of Gujarat in western India, some believers have been going to cow shelters once a week to cover their bodies in cow dung and urine in the hope that it will boost their immunity against, or help them recover from, the coronavirus.