Hepatitis B vs Hepatitis C: Differences That Matter for Your Health

Hepatitis B and hepatitis C are both liver infections caused by different viruses, but they differ in nearly every way that matters to patients: transmission routes, availability of vaccines, curability, and testing practices. The most important distinctions — hepatitis B has a highly effective vaccine but no cure for chronic infection, while hepatitis C has no vaccine but is curable in over 95% of cases with 8-12 weeks of oral medication.

Patients often conflate hepatitis B and C, assuming they are variations of the same disease. While both target the liver and can cause chronic infection, cirrhosis, and liver cancer, their clinical trajectories and treatment options are fundamentally different. Understanding these differences is essential for making informed decisions about testing, vaccination, and treatment.

How Do They Compare?

Transmission: Both can spread through blood-to-blood contact and from mother to child. Hepatitis B also spreads efficiently through sexual contact — it is 50-100 times more infectious than HIV. Hepatitis C spreads less efficiently through sex and is more commonly transmitted through shared injection equipment.

Vaccine: A highly effective hepatitis B vaccine exists (95% effective, part of childhood immunization schedules). There is no hepatitis C vaccine.

Curability: Acute hepatitis B resolves on its own in 95% of adults; chronic hepatitis B is manageable with antivirals but not yet curable. Hepatitis C — both acute and chronic — is curable in over 95% of cases with direct-acting antiviral (DAA) therapy, typically 8-12 weeks of oral medication.

Chronicity risk: About 5% of adults with acute hepatitis B develop chronic infection (90% of infants). Approximately 55-85% of people with acute hepatitis C develop chronic infection — making chronicity the rule, not the exception, for hepatitis C.

Screening: The CDC recommends universal hepatitis B screening for all adults at least once, and universal hepatitis C screening for all adults aged 18 and older at least once. Yet both infections remain dramatically underdiagnosed — an estimated 67% of people with chronic hepatitis B and 40% with chronic hepatitis C in the U.S. are unaware of their infection.

Which Is Worse?

Neither infection is inherently "worse" — both can cause serious liver disease if untreated. However, the prognosis differs significantly based on available treatments. Chronic hepatitis C is now essentially curable, meaning a diagnosis today carries a much better long-term outlook than it did even a decade ago. Chronic hepatitis B requires lifelong management but cannot yet be completely eliminated from the body.

From a public health perspective, hepatitis B is preventable through vaccination, while hepatitis C is not — making testing and early treatment the primary strategy for hepatitis C control. For detailed information on each infection, see our guides on hepatitis B and hepatitis C.

Can You Have Both?

Yes. Co-infection with both hepatitis B and C occurs and complicates treatment significantly. Co-infected individuals face an accelerated risk of cirrhosis and liver cancer compared to either infection alone. Treatment must be carefully coordinated — treating hepatitis C with DAAs can sometimes cause hepatitis B reactivation, so HBV status must be assessed before initiating hepatitis C treatment. Specialist management is essential for co-infected patients.

Testing: Are You Checked for Both?

Not necessarily — and this is a critical gap. Many STD panels include neither hepatitis B nor hepatitis C testing. When hepatitis screening is included, it may test for only one. If you are requesting STD testing, explicitly ask whether hepatitis B and hepatitis C are both included in the panel.

When to Seek Urgent Care

• Co-infection (hepatitis B + C) confirmed — requires specialist management due to treatment complexity and reactivation risk

• Either hepatitis + alcohol use — alcohol dramatically accelerates liver damage with either infection. Discuss cessation support with your provider

• Jaundice, abdominal swelling, or confusion — signs of advanced liver disease requiring immediate medical evaluation

Frequently Asked Questions

Which is worse, hepatitis B or C?

Both can cause serious liver disease if untreated. The key difference is treatment: hepatitis C is now curable in over 95% of cases with oral medication, while chronic hepatitis B requires ongoing management. Hepatitis B is preventable by vaccine; hepatitis C is not.

Can you have both hepatitis B and C?

Yes. Co-infection is possible and requires specialized management because treating one can affect the other. If you are diagnosed with either hepatitis, your doctor should test for the other.

Is there a vaccine for hepatitis C?

No. Unlike hepatitis B, there is currently no vaccine for hepatitis C. The primary prevention strategies are avoiding shared injection equipment and testing for early detection and curative treatment.

Are hepatitis B and C sexually transmitted?

Hepatitis B is efficiently transmitted through sexual contact and is considered a sexually transmitted infection. Hepatitis C can be transmitted sexually but does so much less efficiently — blood-to-blood contact (primarily through shared needles) is the dominant route.

The Bottom Line

Hepatitis B and C are different infections requiring different approaches. Hepatitis B is preventable by vaccine and manageable with antivirals. Hepatitis C is curable with a short course of oral medication. Both are underdiagnosed and undertested. If you have never been screened for either, or if you have risk factors for liver disease, getting tested for both is a straightforward step that could change your health trajectory. For more on each infection, see our guides on hepatitis B transmission, hepatitis B treatment, and hepatitis C symptoms.