To assess PrEP adherence, tenofovir-diphosphate levels will be assessed at months 3, 6, 12, 18, and 24. Dried blood spots (DBS) will be prepared from venous blood and spotted on Whatman protein saver cards. Drug concentration testing will occur at the University of Cape Town Division of Pharmacology laboratory using DBS TDF testing protocols [60].

Note: The content above has been extracted from a research article, so it may not display correctly.

Please log in to submit your questions online.
Your question will be posted on the Bio-101 website. We will send your questions to the authors of this protocol and Bio-protocol community members who are experienced with this method. you will be informed using the email address associated with your Bio-protocol account.

We use cookies on this site to enhance your user experience. By using our website, you are agreeing to allow the storage of cookies on your computer.