Australia’s second most populous state Victoria entered a five-day lockdown on Feb. 13 as authorities raced to prevent a third wave of Covid-19 cases sparked by the highly infections UK variant.

People who have received the full course of Covid-19 vaccines can skip the standard 14-day quarantine after exposure to someone with the infection as long as they remain asymptomatic, U.S. public health officials advised.

Reuters found new evidence that the U.S. Centers for Disease Control and Prevention’s (CDC) response to the pandemic was marred by actions – or inaction – by the agency’s career scientists and frontline staff.

Australian authorities said mandatory hotel quarantine for people arriving for the Australian Open tennis tournament was essential to stop Covid-19, as the country recorded another day with no new locally acquired cases on Jan. 19.