The World Health Organization (WHO) has published a report of “questions and answers”On vaccines against covid-19, warning that they will not be“ 100% effective ”, as with others. In addition, WHO marks the beginning or mid-2021 as the date when they may be available.
Many potential vaccines against the new coronavirus are currently being developed and, according to WHO, several clinical trials may report results by the end of this year.
If a vaccine proves to be safe and effective, it must be approved by national regulators and manufactured according to strict standards and then distributed to the population.
In this regard, the agency of the United Nations (UN) recalled that it is working with partners around the world to help coordinate the main stages of this process.
When a safe and effective vaccine is available, WHO says it will facilitate equitable access for the millions of people who need it.
However, the agency acknowledged that it is not yet known when it will actually be ready for distribution, although it estimated that it could be in the beginning or mid-2021.
However, he pointed out that to do so, they must demonstrate their safety and efficacy in large clinical trials (phase 3), and that before WHO considers prequalification of a vaccine product, a series of independent reviews of evidence of effectiveness is needed and safety, including regulatory review and approval in the country where the vaccine is manufactured.
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