World Health Organisation data shows the number of deaths increased by 700, reaching 5,700 worldwide since first uncovered in April. 4,175 deaths have now been reported, up 636 in the Americas region data published before.

Cases in Asia-Pacific climbed to 1,070, while In Europe it rose to 281.

“Death toll is mounting, A single dose provide sufficient  immunity against the virus.It can be used alongside seasonal flu vaccines and by pregnant women.” said WHO in a statement after a expert concluded a meeting this week.