Some intensive care specialists are trying to hire more permanent staff. Others want to create a reservist "army" of medical professionals ready to be deployed wherever needed to work in wards with seriously ill patients.
“We are seeing a roughly similar pattern everywhere — I suspect we have more immunity than estimated,” Professor Karol Sikora, who previously directed the WHO’s cancer programme, said.
The Philippines recorded three additional coronavirus deaths and 29 new cases, bringing the domestic tally of infections to 140, as authorities placed the entire capital Manila under "community quarantine" for about a month beginning on Sunday.
The United Kingdom has been one of the world's worst-hit areas, with more than 54,000 suspected deaths, though infections have waned and many restrictions are to be lifted across England from Saturday to revive the economy.
Like millions of other Britons, the prime minister will be able to have a trim and a tipple on Saturday, when the country takes its biggest step yet out of coronavirus lockdown with the reopening in England of restaurants, pubs and hairdressers, along with secular and sacred venues including cinemas and church.
WHO's regional director for Europe Hans Kluge did not identify the countries by name, nor provide detailed numbers. Germany, which began easing measures about seven weeks ago, is however one such country that has suffered a major setback.
Seven other countries risked less extreme but "potentially dangerous" warm weather: Belgium, Estonia, Finland, Latvia, the Netherlands, Portugal and Sweden, it said.
Tourists and Parisians will from Thursday again be able to admire the view of the French capital from the Eiffel Tower after a three-month closure due to the coronavirus -- but only if they take the stairs.
"Ramzan Kadyrov was taken by plane to Moscow with a suspected case of coronavirus. Now (he) is under medical supervision," state news agency TASS reported, citing a medical source who also said Kadyrov was in a "stable" condition.
A total of 350,196 deaths have been reported, from 5,589,389 cases, including 173,713 in Europe from 2,057,414 infections. The United States has registered the most deaths of any country, 98,929, ahead of Britain with 37,048, Italy with 32,955, France with 28,530 and Spain with 27,117.