In people with Parkinsonâs disease, specific nerve cells or neurons in the brain steadily break down or die. Most of the symptoms are caused by the loss of neurons that produce dopamine (chemical messengers in the brain).
The signs and symptoms of pneumonia vary from mild to severe. Many factors affect how serious pneumonia is, including the type of germ causing the infection and your age and overall health. People who have pneumonia may have other symptoms, including nausea (feeling sick to the stomach), vomiting, and diarrhea. Symptoms may vary in certain populations. Newborns and infants may not show any signs of the infection.
Most cases of pneumonia begin with symptoms similar to those of a cold or the flu that last longer than the flu (about seven to 10 days) and become more severe. The symptoms of pneumonia can occur from a few days to a week following the flu-like symptoms.