A Covid uptick

No reason for panic, but caution required

On Monday, Jill Biden — wife of President Joe Biden of the United States — tested positive for Covid-19. This is unlikely to change the travel plans of President Biden, who reportedly tested negative and is due to arrive in New Delhi for the G20 summit. However, it is a reminder that Covid-19, the disease, has not gone away even though the pandemic has officially ended. Some parts of the US have responded swiftly to an increase in cases: Some schools in the states of Kentucky and Texas have cancelled classes, and others in the American South have brought back