Prevalence and Incidence of Pneumococcal pneumonia


About prevalence and incidence statistics: The term 'prevalence' of Pneumococcal pneumonia usually refers to the estimated population of people who are managing Pneumococcal pneumonia at any given time. The term 'incidence' of Pneumococcal pneumonia refers to the annual diagnosis rate, or the number of new cases of Pneumococcal pneumonia diagnosed each year. Hence, these two statistics types can differ: a short-lived disease like flu can have high annual incidence but low prevalence, but a life-long disease like diabetes has a low annual incidence but high prevalence. For more information see about prevalence and incidence statistics.

Incidence (annual) of Pneumococcal pneumonia: 500,000 cases annually (NIAID)
Incidence Rate: approx 1 in 544 or 0.18% or 500,000 people in USA [about data]
Prevalance of Pneumococcal pneumonia: 500,000 cases of pneumonia annually in the United States.1
Worldwide prevalence of Pneumococcal pneumonia:According to the World Health Organization, S. pneumoniae is the leading cause of severe pneumonia worldwide in children younger than 5 years old, causing more than 1 million deaths in children each year [Pneumococcal Vaccines: WHO Position Paper: Wkly Epidemiol Rec, Vol 74, 177-183, 1999]. 1

1. excerpt from Pneumococcal Pneumonia, NIAID Fact Sheet: NIAID

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