COVID-19: Herd immunity requires efficient vaccine, says WHO

London, August 18

The World Health Organization says the planet is nowhere close to the quantity of coronavirus immunity wanted to induce herd immunity, the place sufficient of the inhabitants would have antibodies to cease the unfold.

Herd immunity is usually achieved with vaccination and most scientists estimate at the least 70 per cent of the inhabitants should have antibodies to forestall an outbreak. But some consultants have instructed that even when half the inhabitants had immunity, there could be a protecting impact.

WHO’s emergencies chief Dr Michael Ryan largely dismissed that idea at a press briefing on Tuesday, saying we must always not dwell “in hope” of attaining herd immunity.

“As a global population, we are nowhere close to the levels of immunity required to stop this disease transmitting,” he stated. “This is not a solution and not a solution we should be looking to.”

Most research carried out up to now have instructed solely about 10 per cent to 20 per cent of individuals have antibodies.

Dr Bruce Aylward, a senior adviser to WHO’s director-general, added that any mass immunisation marketing campaign with a COVID-19 vaccine would purpose to cowl excess of 50 per cent of the world’s inhabitants.

“We don’t want to be wrong,” he stated. “You want to plan to get high coverage and not get lulled into a dangerously seductive suggestion that (the herd immunity threshold) could be low.” AP


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