Shimane Journal of Medical Science

Shimane University Faculty of Medicine
ISSN :0386-5959(in print)
ISSN :2433-2410(online)

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Shimane Journal of Medical Science 28 1
2011-12-01 発行

Analysis of Clinical Features of Pandemic 2009 Influenza A(H1N1)

Kimura, Masahiko
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Description
 Clinical features of the pandemic 2009 H1N1 virus infection have been reported mainly in hospitalized patients. We conducted a study using selfreported clinical records of outpatients to analyze their clinical features from November 1, 2009 to February 28, 2010 at Kimura Children and Family Clinic in Izumo, Shimane. A total of 157 records was completed and analyzed. Antiviral treatment with neuraminidase inhibitors was administered to 146 patients(93%). The durations of fever exceeding 37.5 ℃ and 38.0 ℃ were 1.5 and 1.1 days, respectively. Fever duration was shorter in patients above 13 years of age(p<0.05). Cough was a prominent feature of the infection. Delirious behaviors were observed in 15% of the patients, similar to those observed for seasonal influenza. Our findings suggest that 2009 H1N1 virus infection was mild in outpatients. The mild clinical course may permit individualized treatment, not with uniform use of antiviral drugs.
NCID
AA00841586