What is the prevalence of pneumococcal infection in adults?

Updated: Aug 27, 2018
  • Author: Claudia Antonieta Nieves Prado, MD; Chief Editor: John L Brusch, MD, FACP  more...
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Answer

Even fewer data are available on the worldwide incidence of pneumococcal disease in adults. As in the United States, the most common cause of CAP in Europe is S pneumoniae infection, affecting approximately 100 per 100,000 adults each year. Overall rates of febrile bacteremia and meningitis are also similar, (15–19 per 100,000 adults and 1–2 per 100,000 adults, respectively), with the risk for these diseases increased in elderly and infant populations. [40]

Because no population-based data on pneumococcal disease in adults in developing countries are available, estimates of disease burden are based on small clinical studies, vaccine trials, extrapolation from data in developed countries, and studies of persons at high risk for disease. The information gleaned from these sources suggests that the incidence of and mortality rates associated with pneumococcal disease are high, with HIV-positive populations exhibiting particularly high rates of infection. Further studies are greatly needed. [41, 36]


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