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RIO DE JANEIRO, BRAZIL - Tedros Adhanom Ghebreyesus, Director-General of the World Health Organization (W.H.O.) said on Monday, August 3rd, that a vaccine or cure for Covid-19 may not become a reality. According to the organization, there are 164 vaccines in development: 25 are in their clinical and 139 in their pre-clinical phase.

"There's no silver bullet at the moment, and there might never be," said the Director-General. He added that at the moment there are immunizations in the final testing phase, but there is a chance that none of them will offer the . . .

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