Lockjaw is an acute symptom in which the patient cannot open his jaw due to extreme stiffness of the neck muscles. The disease is caused by
Pasteurella pestis
Clostridium tetani
Treponema pallidum
Corynebacterium diptheria
A
Treponema pallidum
B
Corynebacterium diptheria
C
Pasteurella pestis
D
Clostridium tetani
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Solution
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Tetanus is an acute, often fatal, disease caused by an exotoxin produced by the bacterium Clostridium tetani. It is characterized by generalized rigidity and convulsive spasms of skeletal muscles. The muscle stiffness usually involves the jaw (lockjaw) and neck and then becomes generalized. C. tetani is a slender, gram-positive, anaerobic rod that may develop a terminal spore, giving it a drumstick appearance. The organism is sensitive to heat and cannot survive in the presence of oxygen.
Therefore, the correct answer is option B.
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