As Tamil Nadu's coronavirus tally crossed the 64,000-mark, the state government has claimed the native Siddha treatment for patients with no or mild symptoms has given 100 per cent recovery rate. On Tuesday, Yoga teacher Ramadev's Patanjali Ayurved claimed that it has launched medicines that can cure the highly infectious illness within seven days. The company has been ordered by the government to stop advertising or publicising such claims until they have been examined.