Pneumonia is a lung infection that happens when your lungs are filled with pus or fluid. It can range from mild to very severe and can take place in either one of the lungs or both the lungs. It makes the breathing process difficult as sufficient oxygen cannot reach your blood.
Anyone can get it but people over the age of 65 and infants above the age of 2 are at higher risk as the immune system at that age is not that strong. Smoking and drinking alcohol can increase your chances of getting the infection.
Symptoms differ in the mild to severe range. Some symptoms that could be observed are:
Pneumonia can be classified on the basis of lungs:
Bronchopneumonia can have an impact on all the areas throughout both the lungs.
Lobar Pneumonia can have an impact on one or more lobes of the lungs. It is classified into four stages based on its progression –
It can be classified based on its acquisition:
Hospital-Acquired Pneumonia (HAP) is procured during a hospital stay. It can be more serious as compared to the other types as the bacteria may be more resistant to antibiotics.
Ventilator-Associated Pneumonia (VAP) is when a person who is using a ventilator gets pneumonia.
Community-Acquired Pneumonia (CAP) is when you procure pneumonia from the community.
Aspiration Pneumonia is when you inhale bacteria from food, drinks, or saliva. It can occur if you have a problem swallowing or you have been sedated.
Walking Pneumonia –
It is a condition in which a person has pneumonia but he/she may not even know about it. It is a mild condition and may feel more like a respiratory problem. Symptoms such as chills, pain in the chest, fatigue, mild fever, shortness of breath, etc. may be observed.
It can be caused due to bacteria, viruses, and fungi.
Some common types of bacterial pneumonia are:
Fungal pneumonia is of various types:
Viral pneumonia may be a result of:
There are various ways to diagnose pneumonia depending on the severity of the disease.