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The clinical study on the Pfizer – BionTech vaccine against Covid 19 in children from two to five years of age is starting next week. This was announced by the two pharmaceutical companies, which have recently started testing the vaccine in children from six months to 11 years of age, to evaluate its safety, tolerability and immunogenicity.
Small healthy volunteers are divided into three groups according to age: five to 11 years old, who received the first dose last week, two to five years old, and six months to two years old.