A Study to Evaluate the Performance, Usability, and Result Interpretation of INSTI® HIV Self-Test

Inclusion Criteria: * 18 years of age or older * Operator/study staff must complete the subject's Enrolment Questionnaire * Subject to sign and date the Informed Consent Form * Able to complete the required testing on the allocated testing day(s). * Able to speak/ read/write English or Spanish * Willingness to provide the fingerstick blood sample and if necessary, the volume of whole blood collected through venous blood draw (approximately 7 ml) * Willingness to participate in the study site's standard of care HIV counselling and testing program and receive the study site's standard of care test results * Unknown HIV Status Exclusion Criteria: * Has participated in any prior, or concurrent trial of HIV self-tests * Is a practicing medical healthcare professional (doctor, nurse or HIV Counsellor that performs HIV testing with Rapid Tests) * Is currently on a PrEP regimen * Has used a Rapid Diagnostic Test for HIV blood-based self-testing previously * Has received any experimental HIV vaccine * Has a bleeding disorder * Is known HIV+ * Uses Anti-Retroviral medication * Any condition which, in the opinion of the Operator, would make the participant unsuitable or unsafe for enrolment or could interfere with the completion of the assessment, consent form and questionnaire etc. or bias the outcome, i.e., being unable to see / read by forgetting to bring reading glasses, being intoxicated or acute sickness, or visibly distressed.