Analysis
Beyond Omicron: What’s Next for COVID’s Viral Evolution
The rapid spread of new variants offers clues to how SARS-CoV-2 is adapting and how the pandemic will play out over the next several months. As…
Analysis
COVID Vaccine Boosters: The Most Important Questions
Concerns over waning immunity and SARS-CoV-2 variants have convinced some countries to deploy extra vaccine doses — but it’s not clear to scientists whether most people…
Analysis
What Pfizer’s landmark COVID vaccine results mean for the pandemic
Scientists welcome the first compelling evidence that a vaccine can prevent COVID-19. But questions remain about how much protection it offers, to whom and for how…