Synanthropic flies are major epidemiological factors responsible for the spread of trachoma among infants and young children, predominantly in developing countries (Emerson, 1999, Graczyk, 2001).
Eyeseeking flies, like Musca sorbens, play a significant role in the transmission of this serious eye infection (Taylor, 1988).
The house fly Musca domestica has demonstrated its ability to carry Chlamydia trachomatis, the causative agent of the disease, and to transmit it from one animal to another under laboratory conditions.
These findings suggest that under field conditions, this species can also play an important role in the transmission of the disease (Forsey, 1981).
In cattle, the principal ophthalmic infection is infectious keratoconjunctivitis or pink eye (Greenberg, 1973, Stork, 1979). The causative agent here is Moraxella bovis and the major vector the face fly, Musca autumnalis (Gerhardt, 1982).
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