The World Health Organization (WHO) announced that it will only recommend one dose of any of the vaccines to protect against covid-19after almost three years of a global immunization campaign, even for those initially designed for double doses, such as those of Modern o Pfizer.
“A single dose is sufficient for primary immunization, given that many people have previously had at least one infection” (of covid), the director general of the WHO said at a press conference. Tedros Adhanom Ghebreyesuswhen announcing this change in strategy.
The decision was made after the meeting of the group of immunization experts that advises the organization, chaired by the Finnish Hanna Nohynekwho stressed that this “simplification” in the strategy “will improve acceptance of the vaccine.”
The expert also indicated that vaccines based on omicron XBB variantone of the most prevalent, currently show the best protection rate, although he stressed that where these are not available, any of those on the WHO list of recommendations can be administered.
“All of them continue to be effective in preventing serious forms of the disease in risk groups,” said the expert.