विज्ञानं स्पेक्ट्रमी

  TUESDAY, Jan. 12, 2021 (HealthDay News) -- Unlike regular   pneumonia , COVID-19 pneumonia spreads like many "wildfires" throughout the lungs, researchers say. This may explain why COVID-19 pneumonia lasts longer and causes more harm than typical pneumonia, according to the researchers at Northwestern Medicine in Chicago. The research team said that their aim is to make COVID-19 more like a bad cold. For the study, the team analyzed immune cells from the lungs of COVID-19 pneumonia patients and compared them to cells from patients with pneumonia caused by other viruses or bacteria. While other  types of pneumonia  rapidly infect large regions of the lungs, COVID-19 begins in numerous small areas of the lungs. It then uses the lungs' own immune cells to spread across the lungs over many days or even weeks. This is similar to how multiple wildfires spread through a forest, the study authors explained. As COVID-19 pneumonia slowly moves through the lungs, it leaves damaged