|Selected research from leading health care experts whose findings have a direct bearing on public policies effecting medical progress. Research is chosen based on its quality and relevance by the Medical Progress Today editorial staff.||
Effect of Introduction of the Pneumococcal Conjugate Vaccine on Drug-Resistant Streptococcus pneumoniae
In this study, researchers attribute a significant decline in the number of drug-resistant pneumococcal infections among infants and older adults to pneumococcal conjugate vaccine inoculations.
Rates of invasive disease caused by penicillin-nonsusceptible strains and strains not susceptible to multiple antibiotics peaked in 1999 and decreased by 2004, from 6.3 to 2.7 cases per 100,000 (a decline of 57 percent; 95 percent confidence interval, 55 to 58 percent) and from 4.1 to 1.7 cases per 100,000 (a decline of 59 percent; 95 percent confidence interval, 58 to 60 percent), respectively.
Researchers concluded that "the rate of antibiotic-resistant invasive pneumococcal infections decreased in young children and older persons after the introduction of the conjugate vaccine."
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