screw-worm(redirected from Old world screw-worm)
The larva of the botfly, Cochliomyia hominivorax, and other similar forms that cause human and animal myiasis.
the flies that produce screw-worms.
invasion of normal skin wounds by maggots of callitroga, chrysomyabezziana and passeromyia flies. Large masses of tissue may be destroyed and the case fatality rate approximates 100%. All animal species including humans are susceptible.
New world screw-worm
Old world screw-worm