Chronic bronchitis sufferers, however, cough and spit up mucus over at least a three month period, for two or more years in a row. They’re said to have COPD — chronic obstructive pulmonary disease.
"Bacterial pneumonia is usually caused by bacteria that already live in the upper respiratory tract, and it develops after a cold or the flu," she said. "These types of pneumonia can be contagious ...
“Bacterial pneumonia is usually caused by bacteria that already live in the upper respiratory tract, and it develops after a cold or the flu,” she said. “These types of pneumonia can be contagious, ...