???? ??? ??? ??­??????? ?? ????­ ?????? ??? ??­ ????? ??????­???? ??????? ??????. ???? ??? ??? ??­??????? ?? ??????? ? ??????? ???? ??? ??? ?????? ?? ??????? ???????? ?????? ?? ????­ ?????? ? ????? ?????? ???? ????.Conditions which has a substantial possibility of transmission or problem of containment are thought of dangerous for public heal