Recent Contributions

• 2 new omicron variants are spreading in N.Y. and elsewhere. Here's what we know
• Why hasn't my daughter caught COVID? 2 factors likely protect her — and maybe you too
• When 2 coronavirus variants meet inside 1 person, a Frankenstein hybrid can be born
• Who might benefit from a 4th shot — and who might not
• The future of the pandemic is looking clearer as we learn more about infection
• A second version of omicron is spreading. Here's why scientists are on alert
• Booster longevity: Data reveals how long a third shot protects
• Fact check: The theory that SARS-CoV-2 is becoming milder
• What we know about the symptoms — and the severity — of the omicron variant
• The vaccines work against severe disease. Here's why boosters are still a good idea