Passing on/transmitting herpes

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  1. How is herpes simplex caught and passed on?

    The virus is passed directly from the affected area of skin (which could be the genitals, face or hands), by direct skin to skin contact, with friction, when the virus is present. Herpes simplex gets in easily through mucous membranes, i.e. the moist skin inside the mouth and genital-anal area. Sometimes it gets into ordinary skin, on other parts of the body, if there is a cut or break in the skin. This can be on the fingers/hands, knees, etc., if these come into direct contact with the affected area of another person. A finger sore is called a herpetic whitlow.

    It can be passed from the face of one person to the genitals of another (or genitals to face) through oral sex, when the virus is active.

    You can pass it on from the affected area, when the virus is present on the skin surface: from the first warning signs that a recurrence is starting (tingles, burning skin sensations, aches, stabbing pains), through the time when there are sores or blisters, until they have healed and fresh skin has grown back.

    There is also a slight possibility that virus may be transmitted through asymptomatic shedding which can occur between outbreaks. You can get the transmission leaflet – free to members – when you join. Another useful resource is the Herpes Simplex – the Guide booklet: 16 page, 6,000 words.

    Get this two-page summary which covers the basics.

    About six in ten adults by age 25 carry herpes simplex virus type 1 [4] [5and one in ten carries type 2.[6] [7] Even more people carry herpes simplex virus in older age groups – but most don’t know. Only around one in three of those infected – with either type – is aware of this.

  2. Can I catch herpes again on another part of my body? Can my partner catch herpes back off me – on another place?

    It is rare for people to re-catch a virus that they already have for a second time – even on a different part of the body. Their immune system defends them against this. The virus does not travel through the body. So a person with a genital infection can kiss or perform oral sex – there is no risk of infecting a partner by doing this; the virus will not travel inside the body from the genitals to the mouth.

  3. How can I protect my new partner? What about my new partner? How likely am I to infect my new partner?

    Already, you are a safer partner than many others because you have been diagnosed so you will avoid sex from the moment you notice the start of an outbreak, until the time when it has totally cleared up. A man with genital herpes can protect a partner easily if his outbreaks appear in the area covered by a condom. (See next section.)

    A woman with genital herpes can tell a man that he is half as likely to catch genital herpes from a woman, compared to the chance of a woman catching it from a man. This information can be useful for diagnosed women when talking to a new partner.

    Antiviral tablets taken daily should prevent outbreaks, make a big reduction in asymptomatic shedding and make passing the virus to a partner very unlikely

    Herpes simplex infections are common. Many new partners will have one or both types already but not know. See the government’s statistics for new genital herpes infections diagnosed in clinics – and add a further 53,000 cases which how many are probably diagnosed by GPs.

  4. How long after the symptoms disappear before I can have sex?

    Don’t have sex from the first warning signs that a recurrence is starting (tingles, burning skin sensations, aches, stabbing pains).  Wait until the skin has healed and fresh skin has grown back.

  5. Can using a condom prevent transmission of herpes simplex?

    Yes, it can make a big difference. Herpes simplex virus cannot get through a condom. The condom should be put on the penis before it touches the partner’s sensitive (genital) skin. If the virus is active on the skin outside the area covered by the condom, transmission may still happen.

  6. Could I pass herpes simplex to a partner if I have no symptoms?

    This sometimes happens but is not likely. When the virus is inactive (dormant) inside the nerve cells it cannot be caught by a partner. If there is virus on the skin surface where you get your symptoms, it may be passed on – see What is asymptomatic shedding? There may be a tingly or itchy feeling at the place where this is happening. Diagnosed people are less likely to pass it one when there is nothing to see on the skin, because they are usually more aware of these prodromes (the warning feelings), whereas undiagnosed people often ignore highly infectious and obvious symptoms, because they do not know what they are.

    An antibody test (blood test) might show that your partner has already caught one of the herpes simplex viruses – although all these tests, whether you get it from clinics or off the internet, are very unreliable and results should be treated with caution. If the test shows your partner probably has antibodies, it means the partner will have either total or partial protection. Subscribers can request our leaflet explaining the antibody test in full.

  7. What if my partner already has herpes simplex?

    When you and your partner have the same virus you will not reinfect each other – even on a different part of the body.

    • If you have caught a genital infection from a partner’s genitals, they will not catch the virus back on their face.
    • If you have caught a genital infection from a partner’s facial cold sores, they will not catch the virus back on their genitals.

    And also:

    • If you have caught it on your face from your partner’s genitals, then they will not catch it on their face if they do oral sex on you.
    • If you have caught it on your face from your partner’s facial cold sores, then they will not catch it on their genitals if you do oral sex on them.

    Read more about protecting a partner from genital herpes in the transmission leaflet, free to members. The information is posted or sent by email.

    A two-page summary is available.

  8. What if my partner already has facial cold sores?

    If your new partner has had facial cold sores in the past, this either means that they have the same herpes virus as you, or will have the other type (there are only two types of herpes simplex). When you both have the same type, it is highly unlikely that either of you will reinfect the other. If you have different types and either of you catches a second type, symptoms will probably be slight or non-existent. This is because the antibodies for one type will have some immediate effect on the other type as well. It is called ‘partial protection’.

  9. My partner doesn’t have genital herpes so how can I have caught it?

    Your partner could be one of the ‘two out of three’ people with herpes simplex who have it so mildly they do not realise. So they could have sex when the virus is active. Mild symptoms can appear as a pimple, a little cut or an itchy bit of skin and yet these are very infectious. When people with these mild symptoms learn to recognise them, then they can avoid sex at these times. Another possibility is that your partner does not have herpes simplex and you caught it from a previous partner. It is possible to have a ‘first’ outbreak many years after first catching it.

  10. Can I catch herpes simplex off towels, cups, or anything?

    No, you will not catch it off anything. The virus is caught from the skin, not from objects. It is a delicate virus and dies quickly when away from the skin where the sore is. There is more about transmission in our “Transmission” leaflet – available to members. This statement is taken from the guidelines for doctors produced by the British Association for Sexual Health and HIV.

    Click on the video for Marian’s comments

  11. Can my children catch herpes from me?

    Parents do not need to worry about passing on their genital herpes to children because it is caught through direct skin contact with the affected place when symptoms are present and not from hands or objects. Even sharing a bath with small children is not a problem because herpes simplex virus is not transmitted in water. (See here for pregnancy and childbirth – which is a different issue.)

    • Parents do not pass on genital herpes to their children through the normal activities of family life. Do not allow a fear of transmission to get in the way of ordinary family touching, hugging, sharing, etc.
    • Beds: herpes simplex virus is never transmitted on sheets.
    • You can wash clothes together in the same machine, even when a person has a recurrence.
    • Bathing or showering together will not transmit herpes simplex virus – the same is true for jacuzzis and swimming pools. A child brushing against your upper thighs or abdomen while you have a recurrence won’t catch the virus.
    • Even if you have used the toilet or you have touched the genital area and forgotten to wash your hands, this is not a problem. This virus is fragile and dies when it leaves living cells.
    • Washing with ordinary soap and water is clean enough – there’s no need to use any special hand or toilet seat sanitisers.

    Children do all sorts of odd things that you can’t anticipate, but even if they put your worn knickers on their head they are not going to contract the herpes virus – relax and laugh with them. (We thank the New Zealand Herpes Foundation for this last example!)

  12. Is genital herpes caught from a cold sore?

    If a person with a cold sore on the mouth does oral sex he or she can give his/her partner ‘cold sores on the genitals’ which is genital herpes. Also, cold sores on the face may be caught from someone with genital herpes through oral sex.

    Only the face of a person with cold sores is infectious – so they can have sex, but should not kiss or do oral sex when they have a cold sore. See the description of the two types.

    You will find Herpes Simplex – the Guide booklet (16 pages, 6,000 words) useful too.

  13. Can I get genital herpes from kissing? Is herpes simplex virus in saliva?

    Mouth to mouth kissing cannot give anyone genital herpes.

  14. What is the risk of transmission between recurrences (asymptomatic shedding or viral shedding)

    Studies have shown that virus may sometimes be found on an infected area, even when there are no visible symptoms. This is called asymptomatic shedding. If enough virus is present when direct skin contact (sexual contact) takes place, a partner may become infected.

    The virus most often transmitted during the first months of a new relationship. But partners can be together for years without the virus passing from one to the other. Studies have shown that a majority of people catch it from someone who does not know that he or she has got this virus. Asymptomatic shedding is something that people find difficult to understand – there is a lot more detail in the transmission leaflet you can choose when you join (you decide if you want it sent by post or by email).

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