Question

Name the causative organism of pneumonia.

Answer 1

Hint: The causative agent of pneumonia is a prokaryotic organism. It shows positive results to gram staining and its shape is like a lancet. It is a facultative anaerobe and shows colony formation and is mostly present in the respiratory tract.

Complete answer:
The most common causative agent is Streptococcus pneumoniae, the bacteria enter the respiratory system and settle down in the air sacs (the alveoli) and multiply which results in infection and inflammation causing the formation of fluid inside the lungs Other bacteria like Haemophilus influenzae also cause pneumonia. It is also caused by a virus and it affects the persons with a weak immune system. Fungal pneumonia is uncommon and occurs in individuals with a weak immune system due to any
medical problem.
Symptoms of Pneumonia include
- difficulty breathing
- shortness of breath
- feverish body with chills
- nausea and chest pain
Pneumonia is treated with antibiotics in case of bacterial pneumonia the individual leaves to increase the fluid intake with proper nutrition and oxygen for breathing problems. Pneumonia can be prevented by certain vaccination, proper hygiene, and no smoking and no alcohol consumption.

Note: Pneumonia is a very common illness affecting a population of 450 million individuals in a year, with a mortality of 4 million people. The chances of pneumonia are seen greatest in newborn infants.
Viral pneumonia is caused by a wide range of viruses including influenza and coronavirus. In 1881 Streptococcus pneumoniae was known and isolated by French chemist Louis Pasteur and U. S. Army physician George Sternberg. It was named in 1886.