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Articles on Immune system

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An artist’s impression of antibodies (red and blue) responding to an infection with the new coronavirus SARS-CoV-2 (purple). KTSDESIGN/SCIENCE PHOTO LIBRARY / Getty Images

Declining antibodies and immunity to COVID-19 – why the worry?

If antibody levels drop dramatically after an infection, what does that mean for immunity? An expert explains how B and T cells contribute to immunity and why antibodies don't tell the full story.
Children are at risk of getting sick from coronavirus and need to practice social distancing and mask wearing too. AP Photo/Seth Wenig, File

Yes, kids can get COVID-19 – 3 pediatricians explain what’s known about coronavirus and children

Research shows that children can become infected with the coronavirus and spread it to others. Though rare, some kids do become severely ill and a few have died from COVID-19.
For those who have suffered from COVID-19, do their antibodies guarantee immunity from subsequent disease? Sebastian Kaulitzki/Science Photo Library via Getty Images

Am I immune to COVID-19 if I have antibodies?

If you have had COVID-19 already, are you protected from another bout of the illness? And is the presence of antibodies in your blood a guarantee of immunity?

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