British PM in self-isolation after a contact tests positive for COVID-19

Britain's Prime Minister Boris Johnson gestures during a press conference on the steps of the Government buildings in Dublin on September 9, 2019. - Irish Prime Minister Leo Varadkar said on Monday that the European Union had not received from Britain any alternatives to the so-called backstop provision in the Brexit divorce deal. (Photo by Lorraine O'SULLIVAN / AFP) (Photo credit should read LORRAINE O'SULLIVAN/AFP/Getty Images)

British Prime Minister Boris Johnson went into isolation after a contact tested positive for the coronavirus.

LONDON, ENGLAND – JULY 24: New Prime Minister Boris Johnson speaks to media outside Number 10, Downing Street on July 24, 2019, in London, England. /Getty Images

“He will carry on working from Downing Street,” a spokesman said, adding that the prime minister, who spent three nights in intensive care during his April bout of COVID-19, did not have any symptoms.”

Europe has been hit particularly hard by a second wave of the pandemic, with curbs reimposed often in the face of protests from Greece to Britain, where PM and COVID-19 survivor Johnson went into self-isolation after coming into contact with an MP who later tested positive for the virus.

Elsewhere on the continent, Germany warned that its anti-virus measures were likely to stay in place for several months.

In hard-hit France, health minister Olivier Veran warned that while strict containment measures had helped slow the virus, “we have not won against the virus yet”.

Concerns of a resurgence also remain in parts of the world that have largely brought their caseloads under control, such as in Australia, where a new cluster suddenly emerged in a city that had gone seven months without a major outbreak.

And in Hong Kong, the government further tightened restrictions from Monday on the number of people in bars and restaurants, to guard against a spike.

The United States, the worst-hit nation in the world, surpassed 11 million cases on Sunday, adding one million new infections in less than a week.

The staggering spikes have forced cities and states across the vast nation to implement new curbs to try and stop the spread of the disease, with a stay-at-home advisory coming into force on Monday in Chicago — the third-largest US city.

Global infections have soared past 54 million with more than 1.3 million deaths, and the worrying spikes have forced governments to reimpose deeply unpopular and economically devastating restrictions on movement and gatherings.

(With input from AFP)