1.   The disease also occurred in men, but less frequently.

2.   The disease occurs mainly in children, but can also occur in adults.

3.   The disease occurs when a child inherits a single dominant gene from a parent with the disease.

4.   The disease usually occurs as an acute infection of the throat.

5.   The human disease occurred after people ate tainted beef products.

6.   The cattle disease occurs more or less anywhere in Africa where the fly occurs.

7.   Progressive disease did not occur in the infected allograft when the corresponding native livers showed quiescent cirrhosis or massive necrosis.

8.   Whether Type I or Type II disease subsequently occurs depends on the grazing management of the calves following weaning.

9.   However, the typical disease may occur in weaned calves grazed until late autumn.

10.   However this can be hazardous since the initial larval challenge may not be sufficient to stimulate immunity and disease may subsequently occur.