Hepatitis can stay silent for years. Here's the test-and-vaccine check.
World Hepatitis Day is a good reminder to check your hepatitis B vaccine status and ask for one-time hepatitis B and C screening, even if you feel completely fine.
The short version
July 28 is World Hepatitis Day. The timing is useful because hepatitis B and C can quietly damage the liver for years, while the first steps to catch them are simple blood tests. WHO's 2026 report says hepatitis B and C together account for more than 95% of viral-hepatitis deaths, even though both are preventable or treatable. 1
For most people in the U.S. ages 18 to 27, the practical move is to ask about a one-time hepatitis B screen, a one-time hepatitis C screen, and whether your hepatitis B vaccine series is complete. Do not wait for obvious symptoms. Many people have none. 23
Why this is easy to miss
Hepatitis just means inflammation of the liver. The important distinction here is how hepatitis B and C spread and what happens after a positive test.
Hepatitis B can spread through infected blood and body fluids, including during sex, birth, injections, tattoos, piercings, or contact with contaminated sharp equipment. Most people do not have symptoms when they are newly infected. Chronic infection can eventually lead to cirrhosis or liver cancer. The good news: a safe, effective vaccine prevents it. 4
Hepatitis C is mainly a bloodborne infection. Sharing needles or other injection equipment, unsafe medical equipment, and unscreened blood are established routes. Sexual transmission is less common, but can happen when blood exposure is involved. There is no hepatitis C vaccine, and many recent infections cause no symptoms. The upside is significant: current oral medicines can cure more than 95% of infections, usually after a short course of treatment. 5
Hepatitis C does not spread through hugging, kissing, sharing food or drinks, or breast milk. A positive test is a reason to get the right follow-up, not a reason to avoid someone. 5
The two tests to put on your list
Hepatitis B: ask for the triple panel
CDC recommends screening every adult age 18 or older at least once, using a three-part blood test called the triple panel. It checks for:
- HBsAg, which can indicate current infection
- Anti-HBs, which can indicate immunity from vaccination or a past infection
- Total anti-HBc, which points to a past or ongoing infection and is not produced by vaccination alone
The result can show that you are susceptible, protected by vaccination, previously infected, or currently infected. Those categories are not interchangeable, so let a clinician interpret the result and tell you whether you need vaccination, monitoring, or treatment. 2
Hepatitis C: antibody first, RNA if needed
CDC recommends a one-time hepatitis C screen for all adults 18 and older. The first test looks for HCV antibodies, which show that you have been infected at some point. A reactive antibody result does not automatically mean the virus is still in your body.
A second blood test, called a nucleic acid test for HCV RNA, checks whether the virus is currently present. If the RNA test is negative, you may have cleared the infection or been cured. If it is positive, you have a current infection that can usually be cured with treatment. If a possible exposure happened within the past six months, tell the clinician, because CDC says an RNA test may be more useful than waiting for an antibody test. 3
Check your hepatitis B vaccine status
In the U.S., CDC recommends hepatitis B vaccination for adults ages 19 to 59, and for older adults with risk factors. The series uses either two or three shots, depending on the product. If you missed a dose, you do not restart the series; get the next dose as soon as possible. Most healthy people do not need a booster after completing the series. 6
If your vaccine records are missing, ask a clinic to help sort it out. Do not assume that a vague memory of getting childhood shots answers the question. The screening blood test and the vaccine record answer different things: one looks for infection and immunity markers, while the other documents doses.
What to do this week
- Ask a primary-care, sexual-health, or community clinic about a hepatitis B triple panel and a hepatitis C antibody test with follow-up RNA testing if needed. CDC also lists confidential testing options through Get Tested.
- Check your vaccination record. If you are 19 to 59 and have not completed hepatitis B vaccination, ask which schedule fits you.
- Mention any possible blood exposure, including shared injection equipment, a needlestick, or tattoo or piercing equipment that did not look sterile. The timing changes which test is useful.
- Use a licensed tattoo or piercing studio, and never share needles, syringes, or other injection equipment. Condoms reduce the chance of hepatitis B transmission during sex, but they do not replace vaccination.
When symptoms change the plan
Routine screening is for people who feel fine. If you develop yellow skin or eyes, dark urine, unusual exhaustion, nausea or vomiting, or abdominal pain, arrange medical care rather than trying to identify the type of hepatitis from symptoms alone. Blood tests are needed to tell hepatitis B from other causes of liver inflammation. 45
Get urgent help for severe or rapidly worsening illness, especially repeated vomiting, confusion, fainting, or yellowing that is getting worse. If you think you were recently exposed, say exactly when and how it happened. That detail can matter more than whether you currently feel sick.
The useful World Hepatitis Day takeaway is boring in the best way: check the vaccine, get the one-time screens, and do not let the absence of symptoms make the decision for you.
References
- 1Global hepatitis report 2026
who.int
- 2
- 3Testing for Hepatitis C
cdc.gov
- 4Hepatitis B
who.int
- 5Hepatitis C
who.int
- 6Hepatitis B Vaccine
cdc.gov
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