Contact Us

IWTK and the JHU International STD Laboratory are closed from December 23, 2016 through January 2, 2017 due to the winter holidays. Staff will return to the office and laboratory on Tuesday, January 3, 2017. Happy Holidays!     



Any Questions?

MARYLAND and WASHINGTON DC residents ONLY:  Please email IWTK at and someone will get back to you within two business days.

ALASKA residents ONLY:  Please email ANTHC at with any questions. Call the ANTHC toll-free number (provided in your kit) to get your results.