[Question #9266] Disease transmission

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34 months ago
Hi there, thank you for all the work you do, I asked a question a few years ago and the answers were a great relief. I unfortunately read some scary stuff on the internet recently, I try not to but sometimes stuff pops up and I come across it. So my question is, about transmission for Syphilis and gonhorrea for kissing? I read that apparently they can be passed by kissing, i hope that’s not true. I’ve heard before that syphilis can be spread by skin to skin contact, but a sore would have to be present yes? I thought syphilis was spread by contact with sores. I get worried when I see things about skin to skin contact, like holding hands, shaking a hands, massages, those are all safe I assume? Also HPV can be spread through skin on skin contact as well? As in contact with genital warts? I’m sure this sounds weird it’s just that std’s scare me and sometimes my fears get the best of me. I hope you can put my fears to rest like last time. Thank you again! 
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H. Hunter Handsfield, MD
34 months ago
Welcome back to the forum. Thank you for your continued confidence in our services.

You raise one interesting issue that is the subject of debate among STD experts; and another that requires qualification for other reasons. I'm taking this opportunity for one of my occasional blog-like replies that may be useful to other forum users or in response to future similar questions.

Gonorrhea by kissing:  A group of highly respected researchers in Melbourne, Australia, believe and have promoted the notion of frequent gonorrhea transmission by kissing. Their research and their interpretation of the results is quite controversial, and most experts worldwide don't believe such transmission is common. To the extent it is a real issue, apparently kissing transmission applies only to men having sex with men, in whom the frequency of pharyngeal (oral) gonorrhea is at least 10 times higher than in straight men and women (because of more frequent oral sex with many partners) and in whom kissing may be (it is speculated) especially prolonged and intensive. All experts, including the Australians, agree that kissing among men and women -- including both casual (social) kissing and intensive (sexual) kissing -- carries no measurable risk of gonorrhea transmission, both because pharyngeal infection is uncommon and because such kissing itself carries little if any risk.

Skin-to-skin STD transmission:  Public health STD education is partly at fault for your misconceptions. Most such materials do a poor job clarifying that the term does not mean that any and all skin contact is risky. It means that during overt sexual contact, some infections (syphilis, HPV, herpes) are transmitted dominantly by skin contact, with others (e.g. gonorrhea, chlamydia, HIV) primarily by infected fluids. This is why condoms are less effective in preventing the skin-to-skin STDs than they are against those transmitted by fluids (because of skin contact not covered by the condom). The term skin-to-skin has never meant that shaking hands, massage without sex, or other similar contacts are risky for these infections. They are not. And that includes the rare occasion of potential contact with someone with, say, syphilitic sores, warts, or herpes lesions outside the genital area. It doesn't happen.

Looking back at your question three years ago, your concerns then also were driven at least in part by things you found online. You'll have to excuse me, but "stuff" does not "pop up" and you do not "come across" disturbing information online without you starting a search on these topics. I am reminded of a comment by Nate Silver, the now-famous statistician (see www.fivethirtyeight.com). In his book "The Signal and the Noise" he writes (approximate quote) "Give an anxious person a computer with an internet connection in a dark room and soon he'll believe his cold is the bubonic plague." Sound familiar? You obviously start searching, and then "come across" information that inflames your anxieties more often than you see or concentrate on other information that would be reassuring. To the extent you'll probably not stop all online investigation of such issues, at least try to limit your searches to professionally run sites (like public health departments, academic medical centers, etc) or those that are professionally moderated (like this one), and especially avoid those primarily run by and for people with certain conditions or at risk.

I hope these comments are helpful. Let me know if anything isn't clear.

HHH, MD
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34 months ago
Hi, thanks for the quick reply. First off let me clarify, when I said scary stuff popped up, I meant that yes I was reading articles online, but I wasn’t searching for what I found. I was reading an article about handjobs which was fine and had no worries, then I saw a connecting article about outercourse and safer sex, which contained some of the scary things I read. So I wasn’t intending to find this, believe me I wish I’d never read any of it. The stuff 3 years ago really scared me, I wasn’t intending to find it at all, I guess I need to be more mindful of my reading. Anyways, that’s certainly surprising to hear, that gonorhhea can be spread by kissing, but I guess no worries if it just seems to be among men with men, I always thought kissing was safe, I’ve certainly done a lot of kissing with girls in my day. So I guess I don’t need to be worried about kissing then, I asked about syphilis and kissing, I assume that’s not a worry either? As for the skin on skin, I’m still a bit confused, you said not to worry about casual touching, massages etc. You said overt sexual contact, like the skin rubbing together during sex? Also hpv and syphilis being skin on skin diseases, I thought sores had to be present for syphilis to be spread, is that what you were saying? I just want to make sure I understand. 
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H. Hunter Handsfield, MD
34 months ago
All I can do is reassure you that kissing, hand-genital contact, fingering, and genital-genital contact without penetration indeed are safe, uncommonly resulting in any STI. Beyond that, don't overthink it! Yes there are theoretical risks from such contacts, but in my nearly 50 years in the STD business, I don't think I have ever seen such a case. And although syphilis rates are rising in women and straight men, it remains quite rare and you are at very low risk from the kinds of exposures you are asking about. Bottom line:  all you need to be reasonably safe is avoid unprotected true sex, i.e. penile penetration into a partner's vagina, rectum or mouth -- and don't worry about other kinds of contact.---
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34 months ago
Well thank you Dr Handsfield, that certainly put my mind at ease, that Australian study is a bit scary but it sound like there’s some refute over it, and I’m straight so it sounds like nothing to worry about. I guess my only other question would be do I need to be concerned about HPV at all? From what I’ve seen it looks like a majority of cases go away on their own, and my Dr has never mentioned it for routine std testing after an encounter. I’ve heard about an Hpv vaccine, is that just for women? Also I’m truly grateful for the work you do and putting our minds at ease. 
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H. Hunter Handsfield, MD
34 months ago
Almost all sexually active persons acquire genital HPV by the time they have had 3-5 lifetime sex partners; or if monogamous with partners who are sexually experienced. Some of these infections may be acquired by genital contact without penetration. In other words, getting and having genital HPV is a normal, expected consequence of human sexuality. Happily, the large majority of infections remain asymptomatic and never cause any health problem. So most likely you have had (and may still have) HPV, but likely nothing will come of it.

However, some HPV infections do result in warts or cancer, which is why all sexually active people are supposed to be immunized against HPV, and you should do that if not done already. The vaccine is highly effective, with 100% protection against the 9 HPV types that cause 90% of warts and cancers. Something for you to think about.

That concludes this thread. I hope the discussion has been helpful.
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