The steady spread of H1N1 flu through China is forcing national health authorities to adjust their containment strategies and take a case-by-case approach at the provincial level.

• 甲型H1N1流感在中国各地的逐步蔓延迫使国家卫生部门调整围堵战略，各省将根据本地的具体情况相应地采取措施。