There's a story about Carrie Kovarick, an assistant professor of dermatology and a member of the Penn-Botswana program, using some vinegar and a smartphone camera to screen women for cervical cancer. Consider this a pilot project involving mHealth, telemedicine, and software supplied by ClickDiagnostics.
When vinegar is applied to the cervix, pre-cancerous cells dehydrate faster and turn white. A photo of the cervix can be viewed by clinical experts who can identify suspicious areas on the cervix.
ClickDiagnostics is involved in a number of global health initiatives.