Το (CDC), αποκαλύπτεται πως η μετάλλαξη «Δέλτα» μεταδίδεται το ίδιο από εμβολιασμένους και ανεμβολίαστους
Εσωτερικό έγγραφο του αμερικανικού Κέντρων Πρόληψης και Ελέγχου Ασθενειών (CDC), αποκαλύπτεται πως...
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