PhD

      Two hundred and six clinical specimens were collected from four different hospitals in Baghdad during the period (February to October 2010) ; these specimens included swabs from anterior nares, hands and ear swabs that were collected from visitors, hospitalized patients and the health care workers in these hospitals. Diagnostic results show that 154 out of the 206 specimens gave positive

A total of (500) mice of Swiss albino strain, ranged in age between (8-12) weeks old and weighed about (23-25) grams were used in this study which was divided into four parts.