Hepatitis B Risks: Can You Get Infected from Baked Goods?

Hello, doctor. I would like to inquire about issues related to hepatitis B. Thank you!

Doctor, I have a colleague who is a carrier of hepatitis B.
Recently, they enthusiastically made baked cookies and shared them with everyone.
At that time, I didn't pay much attention and consumed them.
Later, I suddenly realized this situation, and during that period, I was quite busy and had oral ulcers and a sore throat.
I am wondering if there is a risk of infection in this case.
Thank you for clarifying! I was born in 1990, and I found information online stating that since 1986, all newborns have been vaccinated against hepatitis B, but I am not sure if I received the vaccine.

TU, 30~39 year old female. Ask Date: 2024/06/03

Dr. Chen Shidian reply Gastroenterology and Hepatology

The chances are very low, so there is no need to worry.
Since 1990, universal vaccination for newborns has been implemented, so they should have received the vaccinations.

Reply Date: 2024/06/03

More Info

Hepatitis B is a viral infection that primarily spreads through contact with infectious body fluids, particularly blood, semen, and vaginal secretions. Understanding the transmission risks associated with Hepatitis B is crucial, especially in scenarios that may seem innocuous, such as sharing baked goods.

In your case, the concern arises from consuming baked goods made by a colleague who is a Hepatitis B carrier. It’s important to note that Hepatitis B is not transmitted through food, including baked goods, unless those foods are contaminated with infected blood or body fluids. The virus does not survive well outside the human body, and it is highly unlikely that any infectious material would remain on baked goods after cooking, as the high temperatures involved in baking would effectively kill the virus.

Your mention of having oral ulcers and a sore throat raises a valid concern about potential exposure to infections in general. However, the risk of contracting Hepatitis B through the consumption of baked goods, even with oral lesions, remains extremely low. The primary routes of transmission for Hepatitis B include:
1. Direct Blood Contact: Sharing needles, razors, or other items that may have come into contact with blood.

2. Sexual Contact: Engaging in unprotected sexual activities with an infected person.

3. Perinatal Transmission: From an infected mother to her baby during childbirth.

Given that you were born in 1990, it is likely that you received the Hepatitis B vaccine as part of the routine immunization schedule, which began in Taiwan in 1984 for newborns. If you have completed the vaccination series, you should have immunity against the virus. However, if you are unsure about your vaccination status, it may be prudent to consult with a healthcare provider to check your immunity through a blood test that measures Hepatitis B surface antibodies.

In summary, the risk of contracting Hepatitis B from consuming baked goods made by an infected individual is negligible. The virus requires specific conditions for transmission that are not met in this scenario. If you have ongoing concerns about your health or potential exposure to Hepatitis B, it is advisable to seek medical advice. Regular check-ups and vaccinations are key components of maintaining your health and preventing the spread of infectious diseases.

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