Figure 1.

Number and type of pneumococcal infections per year. Pneumococcal disease in Southern Alberta HIV patients over 10 years; there is no evidence of a decreasing trend. The peak in 2007 overlaps with a serotype 5 outbreak among Calgary's homeless community [10]; number of active patients at the midpoint of each year.

Siemieniuk et al. BMC Infectious Diseases 2011 11:314   doi:10.1186/1471-2334-11-314
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