Answer: streptococcus pneumonia infection
In the case of streptococcus pneumonia infection, the lungs become inflamed in which the alveoli and bronchial passages become plugged with thick fluid or exudates where the lungs are unable to stretch and partially obstructed. The symptoms includes colds, high fever, severe chills, headache, cough, and chest pain. Mostly, bacteria, virus, and fungi cause it.