Q. Least sensitive to primary antitubercular drugs like isoniazid is ?
a. M. chelonae
b. M. kansasii
c. M. fortuitum
d. M. ulcernas
e. M. malmoense
f. M. marinum
Answer -
f
The question asks about least sensitive or in other words resistant to isoniazid drug amongst given non -tubercular mycovacteria.
M. marinum is almost always resistant to isoniazid and streptomycin.
a. M. chelonae
b. M. kansasii
c. M. fortuitum
d. M. ulcernas
e. M. malmoense
f. M. marinum
Answer -
f
The question asks about least sensitive or in other words resistant to isoniazid drug amongst given non -tubercular mycovacteria.
M. marinum is almost always resistant to isoniazid and streptomycin.






