Further spread of swine flu inevitable , World Health Organization says . WHO calls H1N1 a global pandemic , raises alert to highest level . In countries where the virus and the response to it are already widespread , it is not likely to mean significant changes , but Chan urged countries that have not seen cases , or seen only limited cases , to get ready . ` 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 . 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 .