If you have questions about  Coronavirus Disease (COVID-19), please visit the website for the U.S. Centers for Disease Control and Prevention.

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Are you a participant who needs to update your address or telephone number? 


Do you need to speak to us for any other reason? 


Call us at :
1 (800) 734-5057
or send us a message through our contact form and we'll be happy to help you.


*Please note that the SCCS is no longer recruiting new participants. Follow-up is ongoing for existing participants.