 [ Symptoms ] how effective are condoms at stopping sexual transmission of hepatitis [ Disease ] latex condoms are believed to be at least 99 effective unless you are in a mutually monogamous relationship with someone known to be hepatitis free it is best to use a condom in every sexual encounter some experts recommend sticking with a plain condom flavored or scented condoms may be more likely to fail do not use an oil based lubricant as it can degrade latex