T/F: 15% of cases of Streptococcus pneumoniae will have positive blood cultures in the early phase.

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T/F: 15% of cases of Streptococcus pneumoniae will have positive blood cultures in the early phase.

In pneumococcal pneumonia, the chance of a positive blood culture is relatively low, especially early in the illness. Bacteremia can occur, but the proportion of cases with a positive blood culture in the early phase is typically low—around a few percent to low double digits—not as high as 15%. Factors like severity of illness and prior antibiotics can affect culture yield, and blood cultures are often negative early on even when pneumonia caused by Streptococcus pneumoniae is present. Therefore, the statement overestimates early-phase blood culture positivity and is not accurate.

In pneumococcal pneumonia, the chance of a positive blood culture is relatively low, especially early in the illness. Bacteremia can occur, but the proportion of cases with a positive blood culture in the early phase is typically low—around a few percent to low double digits—not as high as 15%. Factors like severity of illness and prior antibiotics can affect culture yield, and blood cultures are often negative early on even when pneumonia caused by Streptococcus pneumoniae is present. Therefore, the statement overestimates early-phase blood culture positivity and is not accurate.

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