| Budget Amount *help |
¥5,070,000 (Direct Cost: ¥3,900,000、Indirect Cost: ¥1,170,000)
Fiscal Year 2017: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2016: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2015: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2014: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
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| Outline of Final Research Achievements |
Epidemics of influenza C virus infection occurred in Yamagata, in 2014 and 2016, but we could not detect antigenic changes of viruses during a study period. Annual investigation of seroprevalence revealed that the prevalence of the antibodies against influenza C virus in 2015 and 2017 were similar to those in 2014 and 2016, suggesting that influenza C virus had been circulating asymptomatically in 2015 and 2017. Influenza C virus infections in a hospital setting had similar rate of pneumonia, significantly lower frequency of wheezing, and higher levels of WBC and C-reactive protein than human metapneumovirus (hMPV) infection, suggesting that bacterial coinfections make respiratory conditions more severe.
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