Further spread of swine flu inevitable , World Health Organization says . WHO calls H1N1 a global pandemic , raises alert to highest level . The agency says that does n't mean disease is worse , but that it 's in more danger . Hong Kong orders closure of all elementary schools , hospitals , day ##care centers .
Further spread of swine flu inevitable , World Health Organization says . WHO calls H1N1 a global pandemic , raises alert to highest level . U.N. agency says that does n't mean disease is worse , but that it 's in more countries . Hong Kong orders closure of all elementary schools , kindergartens , day care centers .