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.