Hepatitis B is a virus that can be transmitted through blood and certain body fluids, but it is important to note that it is not very resistant outside the body. The virus can be easily killed or inactivated by common household disinfectants, heat, and detergents.
Washing clothes in a washing machine with regular laundry detergent, especially using hot water and a full wash cycle, should generally be sufficient to eliminate or greatly reduce the risk of transmission of the hepatitis B virus. The foam that you see at the end of the washing cycle is typically a result of the detergent's action and is not an indication that the clothes are still infected.
However, if you are concerned about the possibility of virus transmission, you can take some additional precautions:
Use hot water: Washing clothes in hot water can help further inactivate the virus.
Separate infected clothes: If possible, separate the clothes that were in contact with the virus from other clothes during washing.
Practice good hygiene: Always wash your hands thoroughly after handling contaminated clothes and avoid contact with any potential bodily fluids on the clothing.
Use bleach: For extra precaution, adding a small amount of bleach to the wash can help to further disinfect the clothes. However, be sure to follow the manufacturer's guidelines and avoid using bleach on clothes that are not bleach-safe.
If you have concerns about the risk of hepatitis B transmission or the effectiveness of your cleaning process, it's best to consult with a healthcare professional or an infectious disease expert for personalized advice.