Cold Sore | Transmission- Are Cold Sores Contagious

Transmission- Are Cold Sores Contagious


Are cold sores contagious? In a nutshell yes, cold sores are very contagious and can easily be spread to others, although most adults are already infected with the virus.

Herpes Virus

They can be a sexually transmitted disease and caution should be taken by those with this type virus, which can be transmitted by saliva or other body fluids. Cold sores on the mouth can cause genital infection during oral sex for people who do not already carry the cold sore virus. Cold sores and genital lesions remain infectious until they have crusted over, so contact should be avoided during this time because the virus can be transmitted to other parts of the body, and to other people, especially between the mouth and the genitals.

Cold sores can be uncomfortable, unsightly and embarrassing for sufferers and they also carry the risk of spreading the herpes virus to other parts of the body or to other people and cold sores inside the mouth can be problematic, interfering with talking and eating. But on the whole, cold sores are not too serious for most people, just a little annoying.

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