What this test measures
Anti-HCV is the antibody your immune system produces against the hepatitis C virus. It is the recommended first-line screening test for HCV exposure. A reactive (positive) result means you have been exposed to HCV at some point — but it does not by itself tell you whether the infection is still active.
A positive anti-HCV must be followed by HCV RNA (quantitative PCR) to distinguish current infection from spontaneously cleared or treated infection. Anti-HCV typically appears 4–10 weeks after exposure and remains positive for life regardless of whether the virus is cleared.
Why it matters
India has an estimated 6–11 million people with chronic hepatitis C. Most are unaware — HCV is silent for decades and only declares itself with cirrhosis, decompensation, or liver cancer. With the arrival of direct-acting antivirals (DAAs) — sofosbuvir, velpatasvir, daclatasvir — HCV is now curable in 8–12 weeks with > 95% success in most genotypes, and India produces these drugs at a fraction of global prices.
NACO India runs free HCV screening and treatment under the National Viral Hepatitis Control Programme. Anti-HCV is the screening entry-point — recommended for anyone who received blood products before 2001, IV drug users, dialysis patients, HIV-positive individuals, people with persistently raised SGPT, and family members of HCV-positive patients.
How to prepare
No fasting required. The test can be done at any time of day. Mention any blood transfusions, surgeries, tattoos, dialysis, or known HCV contact in the request form.
Markers & reference ranges
Reference ranges below are typical adult values. Your lab's reported range may differ slightly based on the assay platform and patient demographics — always read your report against the range printed on it.
| Marker | Normal range | If low | If high |
|---|---|---|---|
| Anti-HCV (Signal-to-cutoff (S/CO) or reactive/non-reactive)[1][2] | Non-reactive (Negative) | Non-reactive — no HCV exposure detected. If you had a high-risk exposure in the last 6 months, repeat at 12 weeks because antibody can take time to develop. HCV RNA can detect infection earlier than antibody. | Reactive (Positive) — past or current HCV exposure. Always needs HCV RNA confirmation. A negative HCV RNA after positive anti-HCV means spontaneously cleared or treated infection. A positive HCV RNA confirms active infection. |
How to interpret anti-HCV and HCV RNA together
| Anti-HCV | HCV RNA | Interpretation | Next step |
|---|---|---|---|
| Non-reactive | — | No HCV exposure. | No further testing unless recent exposure suspected. |
| Reactive | Detected | Active HCV infection. | Genotype, fibroscan, start DAA therapy. |
| Reactive | Not detected | Past resolved or treated infection. | No treatment needed; counsel on re-infection risk. |
| Reactive (low S/CO, no risk factors) | Not detected | Possible false-positive antibody. | Repeat in 6 months; clinical correlation. |
| Non-reactive (recent exposure) | Detected | Acute HCV in early window. | Repeat anti-HCV at 12 weeks; consider treatment per local guidelines. |
Frequently asked questions
My anti-HCV is positive. Does that mean I have hepatitis C?
Not necessarily. A positive antibody means past exposure. About 20–30% of people clear HCV spontaneously. An HCV RNA test is mandatory to confirm whether the virus is still active.
How long after exposure does anti-HCV become positive?
Usually 4–10 weeks after exposure. In immunocompromised people it can take longer. HCV RNA can detect infection within 1–2 weeks of exposure if needed sooner.
Can hepatitis C be cured?
Yes. Direct-acting antiviral (DAA) therapy cures more than 95% of patients in 8–12 weeks. India produces generic sofosbuvir-based regimens at low cost, and NACO offers them free under the National Viral Hepatitis Control Programme.
Does cured HCV mean anti-HCV becomes negative?
No. Anti-HCV usually remains positive for life. Only HCV RNA turns undetectable after cure. This is why you must not interpret anti-HCV alone after treatment.
Who should be screened for HCV?
Anyone with blood transfusion before 2001, IV drug use, dialysis, HIV, tattoos from unregulated sources, persistently raised SGPT, household or sexual contacts of HCV-positive people, and pregnant women per WHO recommendations.
Can hepatitis C be transmitted through casual contact?
No. HCV spreads through blood-to-blood contact — sharing needles, unscreened transfusions, unsterile tattoo/piercing/surgical equipment, and occasionally from mother to baby. It is not spread by hugging, sharing food or utensils.
Is there a vaccine for hepatitis C?
No vaccine exists yet. Prevention relies on blood safety, sterile medical practices, and treating known cases to remove the reservoir.
Related Hepatitis tests
Tests commonly ordered alongside ANTI HEPATITIS C VIRUS (ANTI HCV) - TOTAL, or that help interpret an unexpected result.
Sources & references
- CDC — Hepatitis C Testing Recommendations · accessed 2026-05-30T00:00:00.000Z
- AASLD-IDSA HCV Guidance · accessed 2026-05-30T00:00:00.000Z
- WHO — Hepatitis C Fact Sheet · accessed 2026-05-30T00:00:00.000Z
- NACO India — National Viral Hepatitis Control Programme · accessed 2026-05-30T00:00:00.000Z
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