Article in Japanese

Influence of the 7-valent pneumococcal conjugate vaccine and Haemophilus influenzae type B vaccine in children with pneumonia

Reiko SHIMBASHI, Takahiro NIIZUMA

This study investigated the effect of the 7-valent pneumococcal conjugate vaccine (PCV 7) and Haemophilus influenzae type B vaccine (Hib vaccine) on pediatric pneumonia patients between the periods of 2007-2008 and 2012-2013. Both the percentage of pneumonia cases and that of pneumococcal pneumonia, relative to total hospitalizations, decreased by 18.0%→14.4%, p=0.0051 and 4.7%→3.0%, p=0.012, respectively. Also, the duration of hospitalizations decreased by 6.82 days→6.31 days, p=0.02. However, it is considered that most of the H. influenzae pneumonia cases were not decreased by type B influenzae vaccination.
Therefore, this study regarded PCV7 as being effective for preventing pediatric pneumonia.

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Department of Pediatrics, Tokyo Rinkai Hospital

Key words
Received	March 27, 2015
Accepted	June 25, 2015

27 (3)：197─203,2015