5Weakened Immune System
You find that some individuals have weak immune systems that make them vulnerable to acquire Pneumonia easily. This makes weakened immune systems as one of the major causes of pneumonia. Weak immune system occurs as a result of various issues such as chronic conditions, chemotherapy, heart diseases, organ transplant, and even HIV/AIDS. Immunodeficiency means that your body cannot fight infections where the guard cells are weak, thus making an individual at risk of contracting any illness easily. Extrinsic factors cause, and such an individual must take care and maintain high levels of hygiene. [5]
