* Underreporting: Many cases of CSD are mild and resolve on their own, leading to underreporting. People might not seek medical attention or even realize they have the disease.
* Varying Data: The number of reported cases can vary depending on the region, surveillance systems, and diagnostic practices.
* No Central Database: There's no global or even national central database for tracking all cases of CSD.
However, we can say that CSD is a common infection affecting mainly children and young adults.
Here's some information to consider:
* US Estimates: In the US, it's estimated that around 22,000 cases of CSD are reported each year, but the actual number could be much higher.
* Worldwide: While specific numbers are not available, CSD is known to be a global concern with cases occurring across the world.
Important Note: If you suspect you or someone you know might have CSD, seek medical attention from a doctor to confirm the diagnosis and receive appropriate treatment.