Germany, France among nations to resume use of AstraZeneca vaccine after regulators shot them in the back
MRNA vaccines stimulate lymph nodes for long-term protection; The accuracy of the COVID-19 test may vary according to the time of day
Exclusive: regular booster vaccines are the future in the battle against the COVID-19 virus, says the expert
Dane who died of a blood clot after the AstraZeneca injection had “unusual symptoms”, says the agency
