months (F = - 2 ym; Figure 1. The number of male and female coyotes captured each month during de~redation control efforts in western Virginia by method. ' Females comprised 51% of our sample and males 49%.
Other less common viral and bacterial infections may cause mouth ulcers, but this is rare. Mouth ulcers can be caused by anaemia and occasionally by other blood disorders, and some skin or gastrointestinal diseases. Sometimes the mouth ulcers are the only sign of an underlying disease.
Causes. They are usually simple aphthous ulcers. A typical aphthous ulcer has a red rim with a greyish centre. Less frequently, they can be caused by Candida, herpes simplex, Kaposi's sarcoma, lymphoma or a low white cell count (neutropenia) and they may develop into bacterial infections. Treatment with ddC has been associated with the development of mouth ulcers in 15 to 30% of people who take the drug.