खड़गपुर: I accept your <nis:link nis:type=tag nis:id=SafeHandsChallenge nis:value=SafeHandsChallenge nis:enabled=true nis:link/> World Health Organization (<nis:link nis:type=tag nis:id=WHO nis:value=WHO nis:enabled=true nis:link/>) By taking simple precautions like washing our hands.