Vietnam on coronavirus high alert after first local infection in 100 days

Vietnam was back on high alert for the coronavirus on Saturday after medical officials in the central city of Da Nang detected the country’s first locally transmitted case for three months.Vietnam imposed strict quarantine measures and carried out an aggressive and widespread testing programme during the pandemic, keeping its total tally of reported infections to just 417, with no deaths.It had reported no locally transmitted infections for 100 days until Friday, when the Health Ministry said a…