| http://www.w3.org/ns/prov#value | - Vaccine against pneumococcal infections has led to widespread reduction in serious disease Vaccination with the pneumococcal conjugate vaccine-7 [PCV7--a vaccine that covers 7 strains (serotypes) of Streptococcus pneumoniae] is linked to overall decreases in the rate of serious infections caused by this bacterium, such as pneumonia and meningitis, referred to as invasive pneumococcal disease (IPD)
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