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COVID stubbornly high as vaccine protection wanes
COVID rising as vaccines struggle to contain cases
Herd immunity, fact or fiction?
Vaccines, third doses required
US data arrives
Could COVID break 100,000 cases per day?
Delta, Viral burden Vaccine Effectiveness Against New SARS-CoV-2 Infections In The UK
CDC study shows waning immunity after 4 months
Is COVID climbing the generational ladder?
COVID Vaccines: What we know so far
Data supports booster shots increasing COVID-19 protection
Cases still increasing but good news on natural immunity
