Covid-19: Global total above 21 million with more than 755,000 fatalities; more virus measures everywhere

South Korean police officers wearing face masks in Seoul, South Korea, Saturday (Aug 15). South Korea on Saturday announced stronger social distancing restrictions for its greater capital area where a surge in virus cases has threatened to erase the hard-won gains against the virus. - AP

LONDON, Aug 15 (AFP): Countries among the hardest hit by the Covid-19 (coronavirus) pandemic unveiled further measures on Friday (Aug 14) to battle rising infections, as the number of cases worldwide passed 21 million.

The US Department of Homeland Security said it was extending a ban on non-essential travel through border crossings with Canada and Mexico throughout most of September "to slow the spread" of the disease.