Hepatitis B Transmission Risks for Carriers - Gastroenterology and Hepatology

Share to:

Inquiry about Hepatitis B transmission?


Hello, I am a carrier of hepatitis B and currently taking Viread (tenofovir disoproxil fumarate).
In February of this year, I underwent the following tests: Test order name: Quantitative Polymerase Chain Reaction for Deoxyribonucleic Acid; Test item name: HBV DNA viral load.
The test result was <10.
Is there a possibility that I can transmit hepatitis B to others? Thank you.

Niming, 30~39 year old female. Ask Date: 2023/03/14

Dr. Chen Shidian reply Gastroenterology and Hepatology


It is unlikely to be contagious, but if medication is stopped, there is a high risk of viral relapse.
Please follow your physician's medication regimen.

Reply Date: 2023/03/14

More Info


As a carrier of Hepatitis B, it is essential to understand the transmission risks associated with the virus, especially in light of your recent test results indicating an HBV DNA viral load of less than 10. This result suggests that the level of the virus in your blood is very low, which significantly reduces the likelihood of transmitting the virus to others.

Hepatitis B is primarily transmitted through contact with infectious body fluids, including blood, semen, and vaginal secretions. The most common routes of transmission include:
1. Sexual Contact: Engaging in unprotected sexual intercourse with an infected person can lead to transmission.

2. Blood Exposure: Sharing needles, syringes, or other drug paraphernalia can facilitate the spread of the virus. Additionally, exposure to blood through cuts or open wounds can pose a risk.

3. Mother to Child: An infected mother can transmit the virus to her baby during childbirth.

4. Contaminated Objects: Sharing personal items like razors or toothbrushes that may have come into contact with infected blood can also pose a risk.

Given your low viral load, the risk of transmission is considerably diminished, but it is not entirely eliminated. It is important to maintain safe practices to further reduce any potential risk. Here are some recommendations:
- Safe Sex Practices: Always use condoms during sexual activity to minimize the risk of transmission.

- Avoid Sharing Personal Items: Do not share razors, toothbrushes, or any items that may come into contact with blood.

- Regular Monitoring: Continue to have regular check-ups with your healthcare provider to monitor your liver health and viral load. This will help ensure that you remain in a low-risk category for transmission.

- Vaccination for Close Contacts: Encourage family members and close contacts to get vaccinated against Hepatitis B if they are not already immune. The vaccine is highly effective in preventing infection.

It is also worth noting that while your current viral load is low, it is crucial to remain vigilant. Hepatitis B can sometimes reactivate, leading to increased viral replication and a higher risk of transmission. Therefore, maintaining a healthy lifestyle, including a balanced diet, regular exercise, and avoiding alcohol and drugs that can harm the liver, is essential.

In conclusion, while your low HBV DNA level indicates a reduced risk of transmission, it is still important to practice safe behaviors and keep up with regular medical evaluations. If you have any concerns or questions about your health or the implications of being a Hepatitis B carrier, do not hesitate to reach out to your healthcare provider for personalized advice and support.

Similar Q&A

Understanding Hepatitis B Transmission Risks in Couples

Hello Dr. Hsu: I have been a carrier of hepatitis B since childhood, and my mother is also a carrier. One of my biggest fears has finally come true. My husband is also a carrier of hepatitis B. Is there a risk of cross-infection between us? What should I be aware of? What prevent...


Dr. Xu Li'an reply Family Medicine
Hello, this is Dr. Hsu Li-An's Family Medicine Column. The article discusses what to do if you are a carrier of Hepatitis B. "What should Hepatitis B carriers do?" This is a common question I encounter in family medicine clinics. I usually spend over five minutes e...

[Read More] Understanding Hepatitis B Transmission Risks in Couples


Living with Hepatitis B: Tips for Carriers on Diet and Transmission Risks

As a carrier of hepatitis B, what should I pay attention to in my daily life and diet? Can a hepatitis B carrier transmit the virus to others? Thank you for your response!


Dr. Chen Zhiping reply Gastroenterology and Hepatology
Hello, 1. Individuals who are healthy carriers of Hepatitis B do not require special care but should undergo regular monitoring, maintain a balanced diet, and have a regular daily routine. In terms of diet, they should minimize the intake of foods containing artificial additive...

[Read More] Living with Hepatitis B: Tips for Carriers on Diet and Transmission Risks


Understanding Hepatitis B Transmission Risks for Partners of Carriers

Hello Dr. Huang: I am A-Lan from Taoyuan. I am a carrier of hepatitis B, which I have had since birth. I know that I cannot donate blood, but I have a question that has been bothering me. My boyfriend is worried about being infected by me. Therefore, I would like to ask Dr. Huang...


Dr. Huang Jianling reply Family Medicine
Q: How is hepatitis B transmitted? A: It can be divided into vertical transmission and horizontal transmission: ◎ Vertical transmission: If a pregnant woman is a carrier of hepatitis B and her e-antigen is positive, there is a 90% chance that she will transmit hepatitis B to ...

[Read More] Understanding Hepatitis B Transmission Risks for Partners of Carriers


Concerns About Being an HBV Carrier: Health Risks and Precautions

Dear Dr. Yang, I discovered that I am a carrier of hepatitis B during my university entrance health check. I am the only one in my family who has been infected, but my grandfather previously died from liver cancer. It has been about five years since then, and I have read some re...


Dr. Yang Guojun reply Internal Medicine
1. Hepatitis B carriers have a 100 times higher risk of developing liver cancer compared to the general population. Please have your liver scanned by a hepatologist every six months. 2. Please have your boyfriend come to the hospital for an evaluation to determine if he needs to ...

[Read More] Concerns About Being an HBV Carrier: Health Risks and Precautions


Related FAQ

Hepatitis B Transmission

(Gastroenterology and Hepatology)

Hepatitis B Infection Risk

(Gastroenterology and Hepatology)

Hepatitis B Screening

(Gastroenterology and Hepatology)

Hepatitis B Vaccine

(Gastroenterology and Hepatology)

Hepatitis B Antibodies

(Gastroenterology and Hepatology)

Hepatitis C Infection Risk

(Gastroenterology and Hepatology)

Hepatitis B Medication

(Gastroenterology and Hepatology)

Hepatitis B

(Obstetrics and Gynecology)

Hepatitis B

(Family Medicine)

Diarrhea

(Gastroenterology and Hepatology)