A) Inhaling droplets/aerosols
B) Mosquito
C) Reusing syringes
D) Genetic disease
Correct Answer: A
Solution :
Bacteria like Streptococcus pneumoniae and Hae- mophilus influenzae are responsible for the disease pneumonia in humans which infects the alveoli (air filled sacs) of the lungs. As a result of the infection, the alveoli get filled with fluid leading to severe problems in respiration. The symptoms of pneumonia include fever, chills, cough and headache. In severe cases, the lips and finger nails may turn grey to bluish in colour. A healthy per- son acquires the infection by inhaling the droplets/ aerosols released by an infected person or even by sharing glasses and utensils with an infected person. Dysentery, plague, diphtheria, etc., are some of the other bacterial diseases in man.
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