High-pressure oxygen shows promise in long COVID; earlier Omicron infection may protect against subvariants

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. High-pressure oxygen treatment may help long COVID. Patients with long COVID may see some improvement after breathing pure oxygen in a high-air-pressure environment, according to data from a small Israeli trial.