According to a study published Monday by British health authorities, two doses of Pfizer or AstraZeneca vaccines protect more than 90% against hospitalization in case of infection with the new Delta variant.
DGS considers cutting time between AstraZeneca vaccine doses
in Haberler, COVİD-19 · 17 Haz 2021, 11:20 · 0 Yorumlar (değiştir | kaynağı değiştir)