Featured in immune system

There are more immunocompromised Americans than we think, and that’s a problem with COVID-19 vaccines
COVID might be linked to more blood clots than we thought
Ask Us Anything: Can you actually boost your immune system?
COVID-19 immunity could be long term
Why two doses of the new COVID-19 vaccines are better than one
Why COVID-19 attacks aging immune systems so fiercely
What makes a patient asymptomatic to COVID-19?
The CDC clarifies that COVID-19 immunity and antibodies are still a mystery
Why no one knows if you can catch COVID-19 twice