How long does pneumonia last?
WebMD reports that pneumonia usually begins when a person inhales germs containing bacteria or a virus. Both viral and bacterial pneumonia symptoms are typically the same, and treatment and recovery time are determined by a doctor depending on the severity of symptoms. People with long-term or chronic diseases, such as asthma, heart disease, cancer or diabetes, are more likely to contract pneumonia. Symptoms generally come on quickly, and those experiencing milder symptoms are often diagnosed with walking pneumonia. Confusion or delirium are common in older adults.