“A quarter century ago, the people of Karabakh made an irreversible choice which was a conscious and reasonable step,” he said.

Populations in India, Indonesia and Nigeria are some of the most vulnerable to transmission, the researchers said.

Critics see burkinis as a symbol of Islam and potentially provocative after the July terror atrocity in Nice.

It's the first EU ministerial meeting in Bratislava since Slovakia assumed the six-month rotating EU presidency in July.

Opposition supporters, staging their largest rally for two years, called for President Nicolas Maduro's removal.