Abstract

EFFECT OF GAMMA AND BETA RADIATION ON METHICILLIN RESISTANT STAPHYLOCOCCUS AUREUS (MRSA) ISOLATED FROM SKIN INFECTIONS

Mohammed F. AL-Marjani*, Khalid H. Mahdii and Hana S. Sabaa

Abstract

This work evaluated the effect of Gamma and Beta irradiation on Methicillin resistant Staphylococcus aureus isolated from skin infections. S.aureus is an important human bacterial pathogen responsible for a wide variety of conditions, ranging from subclinical inflammation to severe infections such as methicillin-resistant S. aureus (MRSA), Importantly, this colonization is a known risk factor for infection and S. aureus causes a range of infections, from minor skin infections to abscesses and cause of nosocomial infections. The experiment included a control group and 3 irradiated groups by sources (90 Sr, 22 Na, 137 Cs) which emited Beta and Gamma radiation. The effect of Gamma and Beta irradiation on the viability of Methicillin resistant-S. aureus was efficient to killing MRSA S.aureus, percentage of killing increase when exposed time increase from (2- 4) hr. this primary study was to detect the effect of Gamma and Beta irradiation on the viability of S. aureus isolated from skin infections.

Keywords: Staphylococcus aureus, Gamma and Beta irradiation.