Languages

Alert: Global Health Learning will go offline after May 31, 2025. You can use our Print feature to download course content for your reference. Log in, go to a course, click the Print link in the right sidebar. The course pages will be rolled together in one HTML page. You can copy/paste into a Google doc or save as HTML.

Iodine deficiency disorder (IDD)

IDD affects the nervous system, undermining cognitive and motor development in children and leading to hearing loss. IDD is the world’s greatest single cause of preventable brain damage.