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GENEVA (Reuters) - The World Health Organization warned on Monday that, despite strong hopes for a vaccine, there might never be a “silver bullet” for COVID-19, and the road to normality would be long.
More than 18.14 million people around the world are reported to have been infected with the disease and 688,080 have died, according to a Reuters tally, with some nations that thought they were over the worst experiencing a resurgence.
WHO Director-General Tedros Adhanom Ghebreyesus and WHO emergencies head Mike Ryan exhorted all nations to rigorously enforce health measures such as mask-wearing, social distancing, hand-washing and testing.
“The message to people and governments is clear: ‘Do it all’,” Tedros told a virtual news briefing from the U.N. body’s headquarters in Geneva. He said face masks should become a symbol of solidarity round the world.
“A number of vaccines are now in phase three clinical trials and we all hope to have a number of effective vaccines that can help prevent people from infection. However, there’s no silver bullet at the moment - and there might never be.”
Ryan said countries with high transmission rates, including Brazil and India, needed to brace for a big battle: “The way out is long and requires a sustained commitment.”
The WHO officials said an advance investigation team was not yet back from China, where the virus originated.
A larger, WHO-led team of Chinese and international experts is planned next, to study the origins of the virus in the city of Wuhan, although the timing and composition of that is not yet clear...
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A coronavirus vaccine won’t change the world right away
...public health experts are discussing among themselves a new worry: that hopes for a vaccine may be soaring too high. The confident depiction by politicians and companies that a vaccine is imminent and inevitable may give people unrealistic beliefs about how soon the world can return to normal — and even spark resistance to simple strategies that can tamp down transmission and save lives in the short term.
Two coronavirus vaccines entered the final stages of human testing last week, a scientific speed record that prompted top government health officials to utter words such as “historic” and “astounding.” Pharmaceutical executives predicted to Congress in July that vaccines might be available as soon as October, or before the end of the year.
As the plotline advances, so do expectations: If people can just muddle through a few more months, the vaccine will land, the pandemic will end and everyone can throw their masks away. But best-case scenarios have failed to materialize throughout the pandemic, and experts — who believe wholeheartedly in the power of vaccines — foresee a long path ahead.
“It seems, to me, unlikely that a vaccine is an off-switch or a reset button where we will go back to pre-pandemic times,” said Yonatan Grad, an assistant professor of infectious diseases and immunology at the Harvard T.H. Chan School of Public Health...
The declaration that a vaccine has been shown safe and effective will be a beginning, not the end. Deploying the vaccine to people in the United States and around the world will test and strain distribution networks, the supply chain, public trust and global cooperation. It will take months or, more likely, years to reach enough people to make the world safe....