The lung sounds of pets with pneumonia may sound loud and harsh or may be soft, as air is not circulating through areas of lung tissue affected by pneumonia. (texvetpets.org)
This leads to a «back - up» of blood in the lungs, which can result in fluid leaking out of blood vessels and accumulating in lung tissue, resulting in cough. (morrisanimalfoundation.org)
The scientists also studied lung tissue from humans with asthma and healthy controls. (sciencemag.org)