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Why do children have less severe COVID-19 than adults?

Biology/Immunity Families/Kids Vaccines

A: A better innate immune response may explain milder COVID-19 disease in kids, but they still CAN and DO get infected and transmit SARS-CoV-2, especially the more transmissible Delta variant. 👉🏽 TL;DR. Children have fewer ACE2 receptors, a more robust innate immune system, and produce more anti-viral proteins (like type 1 interferons) than adults. These Read more…

COVID vaccine does NOT cause testicles to swell or lead to impotence

Uncertainty and Misinformation Vaccines

🍌 Apropos of nothing…a Nerdy reminder that the COVID vaccine does NOT cause testicles to swell or lead to impotence. COVID *infection*, on the other hand…. TL;DR: Due to its impact on inflammation and the vascular system, it is biologically plausible that COVID-19 contributes to erectile dysfunction. But as with much COVID-19 research more, ahem, Read more…

Is immunity from natural COVID infection “better” than vaccine immunity?

Biology/Immunity Vaccines

A: No. Getting vaccinated is by far the safest way to develop immunity to SARS-CoV-2. If you’ve already been infected, getting vaccinated still provides you with the best protection-in fact likely *better* than either previous infection or the vaccine alone. A recent study from Israel created waves with findings that people with previous COVID-19 infection Read more…