COVID-19 vaccines appear to protect patients' lungs; depression on rise among youth

The following is a roundup of some of the latest scientific studies on the novel coronavirus and efforts to find treatments and vaccines for COVID-19. COVID-19 vaccines may protect patients' lungs. In vaccinated patients with 'breakthrough' COVID-19 infections, the disease may not affect the lungs as much as in unvaccinated patients, new data from India suggest.