Sent_en: 2zh The drug resistance appears to be limited to the H1N1 variant which causes seasonal flu, while H3N2 or influenza B strains and the H5N1 strain that causes bird flu did not show increased resistance.
Sent_yy: 耐药性似乎仅限于引起季节性流感的H1N1变种中，而H3N2或B型流感菌株和引起禽流感的H5N1菌株没有显示出耐药性增加迹象。