COVID-19 vaccines hold strong against Delta, protection waning in older adults ReutersAstraZeneca vaccine creator: Many may not need booster shots ABC NewsAstraZeneca scientist says COVID-19 boosters may be unnecessary for many | TheHill The HillMass COVID boosters may not be needed, says vaccine creator WJW FOX 8 News ClevelandCOVID-19 booster jabs 'set for go-ahead next week' but vaccine creator says not everyone needs it The SunView Full Coverage on Google News