Division of Infectious Diseases, Beaumont Hospital, Detroit, Michigan 48201, USA.
J Clin Microbiol. 2010 Nov;48(11):4326-8. doi: 10.1128/JCM.01190-10. Epub 2010 Sep 15.
Two immunocompromised patients with 2009 H1N1 influenza pneumonia had viral shedding for over 5 weeks despite therapy with oseltamivir. Declining or persistently low cycle threshold values noted on serial qualitative real-time reverse transcriptase PCR (rRT-PCR) of respiratory specimens implied increasing viral load and probable drug resistance. Oseltamivir resistance was later confirmed by pyrosequencing.
两名免疫功能低下的 2009 年 H1N1 流感肺炎患者,尽管接受了奥司他韦治疗,但病毒仍持续排出超过 5 周。呼吸道标本的连续实时逆转录聚合酶链反应(rRT-PCR)的定量检测中,出现循环阈值递减或持续低值,提示病毒载量增加,可能出现耐药。随后通过焦磷酸测序法证实了奥司他韦耐药。