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Background
The seven‐valent pneumococcal conjugate vaccine (PCV7) was introduced to Japan in 2009, after which there was a rapid decline in invasive pneumococcal disease. There are few data, however, on the effectiveness of PCV7 against community‐acquired pneumonia (CAP). We conducted an ambispective cohort study among children aged 0–6 years old who attended day‐care centers.
Methods
A total of...
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