Omicron linked to rise in croup in babies; TB vaccine improves immune response to coronavirus

The following is a summary of some recent studies on COVID-19. They include research that warrants further study to corroborate the findings and that has yet to be certified by peer review. Omicron linked with croup in babies. The Omicron variant of the coronavirus is causing a dramatic rise in cases of croup, a dangerous respiratory condition usually seen in babies and toddlers, new data suggest. Croup, which causes a distinctive barking-like cough and high-pitched sounds when patients inhale, happens when viruses cause swelling in the respiratory tract that makes it hard to breathe.