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Last Updated: Nov 02, 2021
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Everything You Need To Know About Pneumonia

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Dr. Mool Chand GuptaPulmonologist • 49 Years Exp.MD - Pulmonary, DTCD
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Pneumonia is an inflammation and infection of the lungs. This is a condition where the alveoli or the air sacs located in the lungs fill up with fluid and pus. It is because of this that oxygen cannot reach the infected individual’s bloodstream. People with pneumonia generally have cough, fever, and breathing problems. At times, it can also result in chest pain.

This is a condition that can affect one or both the lungs. There are different forms of this disease. Pulmonary infection is considered one of the most common causes of this disease. It is a kind of infection related to gram-negative or gram-positive bacteria and viruses. Certain infectious agents sharing the similarities of bacteria and viruses might also result in pneumonia.

Symptoms of pneumonia in adults
The symptoms of pneumonia in adults include:

  • Fatigue
  • Fever
  • Coughing up slightly bloody, brown or green mucus
  • Weakness
  • Vomiting
  • Nausea
  • Headaches
  • Loss of appetite
  • Diarrhoea
  • Wheezing
  • Chills
  • Rapid breathing
  • Shortness of breath
  • Chest pain

The milder forms of this disease do not disturb the regular functions of the affected individual and are called “walking” pneumonia.

Signs of pneumonia in children
Unlike adults, kids suffering from pneumonia might not experience a fever or a nagging cough. They might have more subtle signs of this infection. However, children have relatively higher chances of being infected because they do not have fully developed immune systems. Overall, the signs of pneumonia vary according to the age of an individual.

Pneumonia caused by bacteria like Chlamydophila pneumonia and Mycoplasma pneumonia generally results in milder signs of the disease in kids. This kind of pneumonia is called walking or atypical pneumonia and is generally found among school-going children. Children suffering from mild pneumonia might not feel very sick, but they can have one or more of the following symptoms:

  • Low-grade fever
  • Dry cough
  • Tiredness
  • Headache

Causes

  1. Bacteria: One of the most common causes of pneumonia is the bacteria named as Streptococcus pneumoniae. This type of pneumonia may occur after you have had flu or a cold or maybe even on its own. Moreover, it may affect only one part of the lung i.e. the lobe and is also known as lobar pneumonia. 
  2. Viruses: Viruses are one of the main reasons why children below 5 years of age suffer from pneumonia. Viruses that cause pneumonia may also cause cold or flu. Viral pneumonia is usually mild and may be treated at home itself. However, in some cases, it may be very severe and life-threatening. 
  3. Mycoplasmas: Mycoplasma is a type of bacteria that doesn't have a cell wall around the cell membrane which is why they are usually unaffected by most antibiotics which target cell wall synthesis. The symptoms of pneumonia caused by mycoplasmas are mild and the patient does not require bed rest. This type of pneumonia is known as 'Walking Pneumonia'. 
  4. Fungi: People with weakened immune systems or chronic health problems usually develop pneumonia due to fungi. You may also develop fungal pneumonia by inhaling large doses of it mainly found in soil or bird droppings.

Prevention against Pneumonia

It is important for all of us to prevent ourselves from pneumonia and for that we can follow the below mentioned steps:

  1. Know about the symptoms of pneumonia first: It is difficult to detect or diagnose pneumonia, especially in people over the age of 65. In older patients, the common symptoms such as fever, chills, cough may not be experienced. You should watch out for non-respiratory symptoms like weakness, dizziness, delirium and confusion. It is even more difficult to diagnose pneumonia in people who are suffering from preexisting conditions.
  2. Practice good hygiene: Common respiratory Infections, influenza and cold may cause pneumonia. You should follow hygienic habits. Wash your hands regularly before meals and use hand sanitizers in order to prevent the illness from spreading. You should also maintain proper oral hygiene as several oral infections may also lead to pneumonia. You should also keep away from people who are affected by pneumonia or any other illness like flu, cold and serious diseases such as measles or chicken pox. All these factors may cause pneumonia.
  3. Get vaccinated: It is recommended for people of all ages who may be at a risk of getting pneumonia to get vaccinated and immunized against pneumonia causing virus called pneumococcal pneumonia. This is a one-time vaccine, which prevents and reduces the severity of pneumonia. A booster vaccine after every five years may also be prescribed. Elderly people should be vaccinated against all diseases which cause pneumonia.
  4. Quit smoking: Smoking accounts for being a major cause or risk factor for pneumonia. It increases a person’s chance of getting pneumonia as the lungs’ ability to defend themselves from the infection is reduced. By quitting smoking, you will be able to prevent pneumonia.
  5. Maintain a good general health: Maintaining an overall good health and following healthy habits will help you in preventing pneumonia. This is because your immune system stays strong and is able to fight efficiently against pneumonia-causing infections. A proper diet with all essential nutrients is also recommended along with regular physical exercise and proper rest.

Severe cases of pneumonia are capable of making you suffer and you may be admitted to a hospital. According to studies, it has been estimated that more than 60% of people over the age of 65 need to be hospitalised because of pneumonia.