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Interactive data visualizations of antibiotic use and resistance in North America and Europe
, also known as pneumococcus, . The bacterium strikes primarily pediatric populations and, to a lesser extent, elderly patients. Whereas life-threatening conditions were once resolved with penicillin, treatment has become harder and costlier because of the rapid proliferation of drug-resistant strains since the 1970s.
Pneumococcal diseases are preventable by vaccine: since 2000, the has been universally administered to children under the age of 2, under the tradename Although PCV-7 decreased the incidence of disease, particularly in its first years, in the long run the vaccine appears to have caused a and a compensatory resurgence in drug resistance. In 2010 the formulation was succeeded by the which covers more but not all resistant strains.