Hepatitis C Testing — Antibody Screen to Cure
Content last reviewed 2026-09-12 · Educational information — not medical advice
Quick answer
HCV testing runs two steps: antibody screen (exposure ever?) then RNA confirmation (active infection now?). Baby boomers, anyone with injection history, and HIV-positive people should test at least once — because hepatitis C is now CURABLE with 8–12 weeks of pills.
How does hepatitis C testing work?
Step one: HCV antibody test — did you EVER encounter the virus? Reactive results include resolved past infections. Step two: HCV RNA viral load — is the virus actively replicating NOW? Only RNA-positive infections need treatment. Reflex testing (auto-running step two on reactive step one) streamlines the pathway.
Who should test?
CDC recommends ONE-TIME universal screening for all adults 18+, every-pregnancy screening, and periodic testing for ongoing-risk people: injection drug use (current/historical), pre-1992 blood transfusion recipients, hemodialysis patients, HIV-positive individuals, children of HCV-positive mothers, and needlestick-exposed workers.
Window period and results meaning
Antibodies develop within 8–9 weeks typically (up to 6 months occasionally); RNA appears 1–2 weeks post-infection. Antibody-positive/RNA-negative = cured spontaneously (~25% do) or by treatment — worth documenting, not worrying. RNA-positive = active infection deserving the cure conversation.
The cure story
Sofosbuvir-era direct-acting antivirals cure >95% of infections in 8–12 weeks of once-daily pills with minimal side effects. Liver fibrosis reverses meaningfully post-cure. The barrier shifted from treatment efficacy to DIAGNOSIS — millions remain unaware they carry it, which is why screening recommendations keep expanding.
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Frequently asked questions
Is hepatitis C contagious through sex?
Inefficiently compared to blood routes, but higher among HIV-co-infected and high-risk practices — screening those populations makes sense.
I cleared HCV spontaneously — can I catch it again?
Yes, readily — prior infection grants no immunity. Ongoing-risk contexts justify annual RNA testing.