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Sunday, 31 May 2020 4.15 AM IST

WHO warns over virus immunity as global death toll crosses 200,000

covid-19

GENEVA: The World Health Organization warned on Saturday that recovering from coronavirus might not protect people from reinfection as the death toll from the pandemic crossed 200,000 around the globe.

Governments are struggling to limit the economic devastation unleashed by the virus, which has left half of humanity under some form of lockdown and reported infections approaching three million.

The United Nations has joined world leaders to speed up the development of a vaccine, but effective treatments for COVID-19, the disease caused by a coronavirus, are still far off.

But with signs the disease is peaking in the US and Europe, governments are starting to ease restrictions, weighing the need for economic recovery against cautions that lifting them too soon risks the second wave of infections.

The WHO warned on Saturday that there was still no evidence that people who test positive for the new coronavirus and recover are immunized and protected against reinfection.

The warning came as some governments study measures such as "immunity passports" or documents for those who have recovered as one way to get people back to work after weeks of economic shutdown.

"There is currently no evidence that people who have recovered from #COVID19 and have antibodies are protected from a second infection," WHO said in a statement.

"People who assume that they are immune to a second infection because they have received a positive test result may ignore public health advice," it said.

With more than four billion people still on lockdown or stay-at-home orders, governments are debating how to steadily lift curbs, reopen schools, restart businesses and reboot economies without causing a spike in virus cases.

Some of that discussion centres on new mobile phone apps to alert people to infections, mass antibody testing -- to determine who has had the virus and may be immune -- and the public use of facemasks to stop transmission.

"If I've already had corona then I'm not infectious," said Berlin resident Lothar Kopp, hoping to test positive for antibodies as it could allow him to visit his elderly mother.

Germany has carried out tens of thousands of tests and other countries are also working on determining what may be their so-called level of immunity.

But on Friday, UN Secretary-General Antonio Guterres called for international organizations, world leaders and the private sector to join an unprecedented effort to speed up the development and distribution of a vaccine.

"We face a global public enemy like no other," the UN chief told a virtual briefing.

"A world free of COVID-19 requires the most massive public health effort in history"

Any vaccine should be safe, affordable, and available to all, Guterres said at the meeting, which was attended by the leaders of Germany and France.

Absent though were the leaders of China, where the virus first emerged late last year, and the United States, which has accused the WHO of not warning quickly enough about the original outbreak.

The daily death toll in Western countries seems to be falling, a sign hopeful epidemiologists had been looking for, but the WHO has warned that other nations are still in the early stages of the fight.

Global COVID-19 deaths have climbed past 197,000, according to an AFP tally, but new reported cases appear to have levelled off at about 80,000 a day.

The United States is the hardest-hit country by far in the pandemic, recording more than 51,500 deaths and over 890,000 detected infections.

In a sign of potential risks of reopening, Iranian health officials Saturday also raised fears of a "fresh outbreak" with another 76 fatalities declared, bringing Iran''s official death toll to 5,650.

Iran has steadily allowed the restarting of businesses that were closed to stop the virus spread. But Alireza Zali, a health coordinator for the capital, criticised "hasty reopenings" that could "create new waves of sickness in Tehran".

The UN push for a quick vaccine came a day after US President Donald Trump prompted outcry and ridicule with his suggestion that disinfectants be used to treat coronavirus patients.

As experts -- and disinfectant manufacturers -- rushed to caution against any such dangerous experiment, the president tried to row back on his comments, saying he had been speaking "sarcastically".

The world''s biggest economy has been hammered by the pandemic, with 26 million jobs lost since the crisis began, and US leaders are under pressure to find ways to ease social distancing measures.

The governor of Georgia allowed some businesses, including nail salons and bowling alleys, to reopen on Friday.

The mayor of the state''s capital Atlanta condemned the "irresponsible" move, telling ABC News: "There is nothing essential about going to a bowling alley or giving a manicure in the middle of a pandemic."

The unprecedented situation has left the world staring at its worst downturn since the Great Depression, and beyond the US, other countries have already started loosening restrictions to get back to work.

Italy -- with the second highest virus death toll at nearly 30,000 -- announced plans Saturday to set price limits on face masks and ramp up antibody testing as it nears the end of the world''s longest active national coronavirus lockdown.

Italians are awaiting a decision this weekend about which of its restrictions will be lifted and they will probably be allowed to leave their homes freely for the first time since March 9 by early May.

Some professional Italian cyclists like Umberto Marengo have already adapted to long lockdown by turning to making food deliveries on his bike across the northern city of Turin as a way to stay fit and help out.

"The customers are all amazed," Marengo said. "Especially since I always try to go up by the stairs to stay that little bit fitter." Sri Lanka said it would lift a nationwide curfew on Monday after more than five weeks, as Belgium joined other European nations to announce an easing from mid-May.

In France, which will be on lockdown until May 11, residents still confined to home have taken to praising health workers and protesting their frustrations with officials on painted banners hung outside their windows.

"Thank you to the caregivers, shame on the leaders" read one banner hanging outside a building in a Paris suburb.

On the other side of the world in Australia and New Zealand, people held vigils from the isolation of their own driveways to pay tribute to their war veterans on Anzac Day. Official memorials were behind closed doors.

Across the Muslim world, hundreds of millions of faithful also opened the Ramadan holy month under stay-at-home conditions, facing unprecedented bans on prayers in mosques and on the traditional large gatherings of families and friends to break the daily fast.

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