Still waiting to be tested on thousands of people for possible adverse side effects.
Six candidates for covid-19 vaccines are in a “very advanced stage,” so there is hope that the population may soon be immunized against the coronavirus, said director-general of the World Health Organization, Tedros. Adhanom Ghebreyesus.
The Ethiopian expert expressed that the fact that some of the possible vaccines are in the third phase of clinical trials is “hopeful”, but stressed that the final results of these tests should be expected.
More than 140 laboratories in the world are developing vaccines, although six of them in countries such as the US, China, the United Kingdom or Russia are in the third and final phase of trials.
Still waiting to be tested on thousands of people for possible adverse side effects.
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