Second wave of Covid-19 must be fought without vaccines, WHO warns

“I think it will be at least four to six months before there are sufficient levels of immunization anywhere,” Michael Ryan said in a question-and-answer session on social media, noting that vaccines should not be seen as a “magic potion”.

“We are not there yet when it comes to vaccines,” despite recent announcements of promising vaccines that are 90% or more effective, he said. “Many countries are facing this wave, and they will cross it and continue to face it without vaccines,” he added. “We have to understand and internalize this, and realize that this time we have to climb this mountain without vaccines.”

The announcement Monday by the American biotech company Moderna of a vaccine effective at 94.5%, after that last week by the American laboratories Pfizer and German BioNTech of a 90% effectiveness, sparked a new wave of optimism in the world.

The Director General of the World Health Organization (WHO), Tedros Adhanom Ghebreyesus, welcomed the new developments on the vaccine front but warned against any “letting go”.

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