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Pneumonia is an example of disease.
 A. Bacterial
 B. Viral
 C. Helminthic
 D. Protozoa
 E. Both A and B

Answer
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Hint: Streptococcus pneumoniae is the main reason behind the cause. Adenoviruses, rhinovirus, influenza virus (flu), respiratory syncytial virus (RSV), and parainfluenza virus are also the most capable causes. Fever, chills, cough, shortness of breath, and fatigue are some of the signs and symptoms of the pneumonia.

Complete answer:
Pneumonia is because of infection developed by bacteria or viruses and least commonly by fungi and parasites of viral pneumonia. Histoplasmosis, coccidioidomycosis, blastomycosis, aspergillosis, and cryptococcosis are fungal infections that can develop into fungal pneumonia. The starting choice of antibiotics depends on the organism suspected of developing the infection, along with the local patterns of antibiotic resistance. Pneumonia can lead to the death in up to 30% of severe cases treated in the intensive care unit. A difficult level of pneumonia includes sepsis, pleural effusion, and empyema. Influenza and respiratory syncytial virus (RSV) are the most usual viral causes of pneumonia. Antiviral drugs can be used to treat pneumonia caused by certain types of viruses.
Most types of bacterial pneumonia are not very contagious, but tuberculosis and mycoplasma pneumonia are exceptions.


Additional information:
Pneumonia is a disease caused to the lungs that can be noticed by inflammation of the airspaces in the lungs, most usually because of an infection.
Pneumonia can be developed by the viral infections, bacterial infections, or fungi; least possibly by other causes. The most usual bacterial type that can be developed into the pneumonia is Streptococcus pneumoniae. There are vaccines available against several common organisms known to cause pneumonia. Cough is only one symptom of pneumonia. A chest x-ray is usually done to diagnose pneumonia. Risk factors for pneumonia include being over 65 or under 2, having certain chronic medical conditions (including a weak immune system, underlying lung disease, smoking, alcoholism, and neurological problems), or have injuries that interfere with swallowing or coughing.

So, the correct answer is ‘Bacterial and Viral’.

Note: Community-acquired pneumonia (CAP) is acquired outside of medical care, and nosocomial pneumonia (or our healthcare) (PAH) is usually more severe. Nearly 20% of people with CAP need treatment in a hospital.