<s>[INST] How long does it take for HIV to show up on a blood test? [/INST] 
Today because of fourth- generation testing which detects HIV antibodies and p24 antigens, HIV infection can reliably be determined 1 month after a person contracts it. Source: FLORIDA HEALTH. Link: https://escambia.floridahealth.gov/programs-and-services/clinical-health/hiv-aids/faq/index.html . Field: Infectious Disease. Disease: HIV </s>