What percentage of acute sinusitis cases are attributed to Streptococcus pneumoniae?

• A. 20-43%
• B. 10-20%
• C. 50-60%
• D. 30-40%

Answer: (A)

The attribution of Streptococcus pneumoniae in cases of acute sinusitis is significant, and the correct choice reflects the fact that a considerable proportion of these infections are caused by this organism. It is known that Streptococcus pneumoniae is one of the most common bacterial pathogens responsible for acute sinusitis, and many studies have shown that it accounts for approximately 20-43% of cases. This rate of prevalence places it among the leading causes of bacterial sinusitis.

The other options suggest lower percentages, which do not align with the established epidemiological data regarding the etiology of acute sinusitis. Choosing a range that captures the higher prevalence underscores the importance of recognizing Streptococcus pneumoniae in the diagnosis and treatment of this condition. Understanding this statistic can help guide appropriate antibiotic therapy, which is critical in effectively managing sinusitis cases where a bacterial infection is confirmed or suspected.