Does hepatitis B appear in sweat?

[Liam]

If someone touches sweat of someone has hepatitis B on door handles, gym equipment, or even shakes hands while sweating, is there a risk of infection?

[bob]

Questions such as this can be answered by this. But in general, additionally, it doesn’t really appear in sweat

Is swimming a way of HBV transmission?

In general the more complex a virus is, the less it can survive outside the body for transmission That’s why you don’t get a virus that spreads like the common cold but is extremely fatal. It’s a balance of nature, based on physics Blood borne viruses tend to be complex which is why they are delicate and most commonly spread through things like sharing needles, child birth, and blood transfusions, etc While it’s theoretically possible for a virus to float through the water from one person to …

[Liam]

In a research in Japan 2016, it has shown detected hepatitis B in sweat . Is this verified?
Thanks you.

[ThomasTu]

This is virus DNA, and not necessarily infectious virus. We know that very short circulating fragments of virus DNA can be found in urine (Hepatology Communications) but these aren’t the virus itself, just bits of it. From a public health perspective, I don’t know if there has ever been a verified case of transmission through sweat and it represents a negligible risk.

Thomas