Pfizer vaccine trials expand to kids younger than 12 years old
The next phase of Pfizer's vaccination trials is now underway, testing the vaccine's effectiveness in children ages 5-11 years old. Within the next several weeks, the trials will e…
The next phase of Pfizer's vaccination trials is now underway, testing the vaccine's effectiveness in children ages 5-11 years old. Within the next several weeks, the trials will e…