Vaccine developers are racing to test and determine if their shots will eventually require an extra dose or booster shot to maintain protection against COVID-19, but it still remains unclear..צפה במאמר
As teen and adult state residents continue to get vaccinated against the COVID-19 virus, Yale School of Medicine is participating in a nationwide clinical trial to see how younger children r..צפה במאמר
moderna הגייה עם משמעויות, מילים נרדפות, הפכים, תרגומים, משפטים ועוד