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WHO offers “doubts” about vaccine immunization

Last week, Pfizer announced that it had developed a vaccine that is 90% effective against the coronavirus. This Monday, Modern has gone one step further and has notified that his increased to 94.5%.

But Soumya Swaminathan, chief scientist of the World Health Organization (WHO), has warned that despite the “so encouraging” news, there are still “doubts” about immunization that these remedies can contribute to some groups.

Due to this reason, the expert has indicated that it is two-month follow-up necessary to trial participants to assess possible side effects: “In internal analysis the vaccine appears to be effective protection above 94 percent, but you have to wait and see the security profile. ”

No time for complacency

For his part, Tedros Adhanom Ghebreyesus, director general of the organization, has shown concern for the current situation: “This is no time for complacency”. His warning comes mainly from the remarkable increase in cases in regions such as Europe or America.

Thus, after knowing the announcements by these two pharmaceutical companies, he stressed that this news “keeps us cautiously optimistic in which there are more means against the coronavirus in the next few months. “