Indonesian domestic birds in critical condition after suffering Hong Kong 's first human case of H7N9 avian flu . The couple had recently travelled to mainland China and slaughtered a live bird . Hong Kong is on high alert after an Indonesian domestic helper contracted the city 's first human case of H7N9 avian flu , the city 's government says . Hong Kong had raised its level of preparedness for an influenza pandemic to ` ` serious '' Human infections from the H7N9 strain of bird flu first emerged in China in March this year .
Indonesian domestic birds in critical condition after suffering Hong Kong 's first human case of H7N9 avian flu . The couple had recently travelled to mainland China and slaughtered a live bird . Hong Kong had raised its level of preparedness for an influenza pandemic to ` ` serious '' Human infections from the H7N9 strain of bird flu first emerged in China in March this year .