Dr. Michael Ryan, head of the emergency department at the World Health Organization, stressed that at least 80% coverage of vaccinations against the Corona virus is necessary to reduce the possibility that a case of the Corona virus will lead to new cases or a wider outbreak of disease, and Ryan added that high levels of coverage Vaccination is the way out of this epidemic, according to a report by the Chinese newspaper, south china post.
Many wealthy countries are turning to vaccinate teenagers and children who have a lower risk of contracting more severe cases of coronavirus than the elderly or people with comorbidities, even as those same countries face pressure to share vaccines with poor countries that lack them.
Britain, which has drastically reduced the number of cases thanks to a massive vaccination campaign, has recently seen a slight rise in cases largely attributed to the so-called delta formula that originated in India, a former British colony.
Ryan acknowledged that the data wasn't entirely clear about the percentage of vaccination coverage that was necessary to have a full impact on transmission, but he made it clear that 80% coverage is sure to be in a position where you can significantly impact the risk of an imported case potentially generating cases. secondary or causing a cluster or outbreak.
"So it takes very high levels of vaccination, especially in the context of the more transmissible variants, to be on the safe side," Ryan added.
Maria Van Kerkhove, the technical head of the World Health Organization on Corona, indicated that the delta variant is spread in more than 60 countries, and it is more transmissible than the alpha variant, which first appeared in Britain.
It cited "disturbing trends of increased transmission, increased social mixing, loosening of public and social health measures, and unequal and inequitable vaccine distribution around the world."
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