COVID reinfections: are they milder and do they strengthen immunity?

illpaxphotomatic/Shutterstock We’ve known since early on in the pandemic that COVID reinfections could occur. One of the first reinfections reported was in a 33-year-old man from Hong Kong. His initial infection was diagnosed on March 26 2020, with his second infection, with a genetically distinct virus, being diagnosed 142 daysContinue Reading

South African scientists on the inside story of discovering omicron – and what their experience offers the world about future variants. Podcast

After South African scientists sounded the alarm about the new omicron variant, countries around the world closed their borders. Kim Ludbrook/EPA What is it like to discover a new coronavirus variant? In this episode of The Conversation Weekly podcast, we hear the inside story from one of the South AfricanContinue Reading

Moderna’s two-dose Covid-19 vaccine is associated with a higher risk of heart inflammation than Pfizer’s, but the benefits of both companies’ shots outweigh the risks, according to a Centers for Disease Control and Prevention panel of outside experts. The CDC’s Advisory Committee on Immunization Practices met Friday to debate theContinue Reading