The US Centers for Disease Control and Prevention has reclassified the Delta strain of COVID-19 as a variant of concern, based on mounting evidence of it being more transmissible.
India's COVID-19 vaccination program has been launched. It currently uses the vaccines Covishield and Covaxin. There are some issues and challenges that need to be overcome in order to vaccinate all Indians.
Natto, the traditional Japanese food, contains substances that can serve as potential antiviral drugs against SARS-CoV-2. Researchers suggest the potential antiviral activities of natto extracts along with the other health benefits of this food.
B.1.617, the double mutant variant of coronavirus that has emerged in India, entered certain types of lung and intestine cells with slightly increased efficiency.