A low-tech pap smear alternative for cervical cancer screening in Botswana and other developing countries | NPR Shots Blog
A similar vinegar (acetic acid) wash and visualization procedure is an existing downstream part of the process for evaluating and treating possible precancerous lesions. However, doing the vinegar wash before a positive pap and without a colposcope (a microscope for looking at the cervix) is easier and cheaper: it doesn’t require a lab to look at a pap smear, and the preventative treatment (freezing the lesions) is done on the spot at the same visit.
This method has been out there for a little while and validated in laboratory as a population screening tool by scientists at Johns Hopkins University (JHPIEGO). Now it looks like their proposal has caught on in some low and middle-income countries in Africa and Asia.