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The repertoire of human efforts to avoid sexually transmissible diseases: past and present. Part 2: Strategies used during or after sex
  1. Basil Donovan1
  1. 1Sydney Sexual Health Centre, Sydney Hospital, and Department of Public Health and Community Medicine, University of Sydney, NSW, Australia
  1. Sydney Sexual Health Centre, PO Box 1614, Sydney, NSW 2001, Australia donovanb{at}sesahs.nsw.gov.au

Abstract

Background/objective: Despite the focus by public health programmes on condoms, chastity, or monogamy, people use a much wider variety of strategies to minimise their personal risk of sexually transmissible disease (STD). The objective of this study was to compile a comprehensive list of personal and societal STD avoidance strategies.

Methods: Data from clinical and research observations, computer searches, and historical texts were pooled.

Results: A variety of behaviours during or after sex, other than condoms, were identified that have been perceived to alter STD risk. STD avoidance strategies were often poorly documented and difficult to disentangle from other drives such as aesthetics, sexual variety, and contraception. They also varied in popularity in time and place. Some examples were douching; systemic and topical prophylactic antimicrobials; non-penetrative sexual practices, post-coital urination; and examining sexual partners' genitalia. Interest in some practices has been recently revived—for example, vaginal microbicides and post-exposure chemoprophylaxis, while others—for example, withdrawal and non-penetrative sexual practices, receive scant attention but may be much more widely used.

Conclusion: The full spectrum of STD avoidance strategies warrants further study because some are ubiquitous across cultures and because they have the potential to complement or undermine safer sex programmes. Because of their greater acceptability, some less efficacious strategies may have greater public health importance than less popular but more efficacious strategies such as condoms.

  • sexually transmitted diseases
  • HIV
  • prostitution
  • military

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Introduction

The accompanying article1 outlined the range of strategies that people use, or have used, to reduce their risk of sexually transmissible disease (STD) before (or instead of) engaging in sex. In that article societal responses to STDs and factors influencing sexual partner selection were also discussed.

In this article, the STD avoidance strategies that people initiate at the time they have sex or shortly thereafter are listed. Military and sex industry responses to STDs are also outlined. The methods used to derive this information were described previously.1

Strategies adopted during sex

The male condom received pre-eminence in HIV/AIDS safer sex campaigns2, 3 because it was the most established product, it was biologically plausible, and because it was deemed to be the most acceptable option for the highest risk populations such as homosexually active men and sex workers and their clients. In retrospect, this took considerable courage as it has taken a long time to establish the substantial protective efficacy against HIV transmission of condoms.4 The protection provided by condoms against other STDs is more variable.5

Globally, however, consistent male condom use remains a minority strategy because of moral objections, limited consumer acceptability, or logistic reasons. The costs of condom use—including financial, interpersonal, aesthetic, and social costs3—are too high for most people. Instead, many people in different settings adapt their sexual practices in ways that do not include male condoms (table 1), often with unknown or only marginal benefit for STD prevention.

Table 1

Actions that individuals may take at the time of sex to alter the risk of STDs

Vaginal microbicides are currently the subject of renewed interest because they minimise the need for male cooperation in HIV prophylaxis.6 A wide range of new compounds and delivery systems is being investigated, with a likelihood that a combination product will emerge with maximum antimicrobial effect and minimum side effects.7, 8

Strategies adopted after sex

Post-coital genital washing, urinating, and applying topical antiseptics (table 2) are all strategies that were more common before better quality condoms and modern antibiotics became available, though they were of dubious value for reasons of poor compliance.9 By the 1970s, before high risk people were willing to accept condoms on any scale, systemic antibiotic prophylaxis was thought to provide the most promise for STD prevention despite its inherent problems.9 Globally, doctor initiated post-exposure prophylaxis against STDs remains uncommon. It is much more common for people to self medicate as prophylaxis against STDs.

Table 2

Actions that individuals use after sex to alter the risk of STDs

Post-exposure systemic prophylaxis against HIV infection (and its potential to undermine safer sex campaigns) has rekindled the concept.10, 11 If affordable, few clinicians would deny access to antiretrovirals for people who had been raped and perhaps people who had experienced a condom failure in an HIV discordant relationship. The debate centres on who else should be provided with antiviral drugs and the need for research assessing their efficacy.

Military responses

Driven by the imperative to maintain the health of fighting forces that were dislocated from domestic restraints, and aided by diminished public scrutiny, the military has tended to take many of the boldest steps in STD prevention. These steps have included:

  1. graphic education programmes with an emphasis on sexual abstinence and temperance12, 13

  2. variously declaring venues that provide sexual opportunity out of bounds or attempting to regulate local sex industries12 14 15

  3. providing (sometimes compulsory) post-coital chemical prophylaxis stations, self administered chemical prophylaxis kits, or condoms13, 16

  4. punishing soldiers who contracted STD,13, 16 often detected by compulsory medical examinations (“dangle parades”)

  5. quarantining infected military men16, 17 or prostitutes12

  6. promoting visits to camp by wives and girlfriends16

  7. providing alternative physical and recreational outlets.13, 16

While the merits of many of these military measures remained unproved, public awareness of STD prophylaxis tended to open up during and after the world wars. Fear of exposing troops to “old world degeneracy”16 was a significant factor in the US isolationism in the early parts of the world wars. But the military in active service often had high STD incidences to cope with, compounded by the fact that many soldiers deliberately exposed themselves to STDs to avoid serving at the front.1719 The explicitness of the military response (table 3) has only been matched by some of the community based education programmes developed since the AIDS pandemic.

Table 3

Instructions* posted by Austrian military authorities in brothels in occupied territories during the first world war

Commercial sex industry responses

Long perceived by the public and authorities as central to STD epidemiology,20, 21 the sex industry has often responded remarkably to the fear of HIV infection by increasingly using condoms.22, 23 Anecdotally, the demand for conventional (vaginal) commercial sexual services diminished, if only transiently, in many parts of the world with the emergence of AIDS. In response, and facilitated in some cases by technological developments, safer forms of commercial sex have blossomed (table 4). Too little is known about them to determine how much these practices are intended to avoid infection or to cater to an increasing market for sexual variety.

Table 4

Forms of commercial sex that have thrived since the advent of AIDS

Discussion

Many potential STD avoidance strategies have been listed here and previously,1 though insufficient data are available to determine their relative efficacy, prevalence (which varies widely between cultures), or how the people engaging in these behaviours construct and combine them. Some practices that were once common—for example, topical antiseptics for men, are now rare while other practices with a long but low profile history—for example, vaginal microbicides, are currently the subject of considerable interest.7, 8

Others, such as partner selection or withdrawal, that may dwarf higher profile strategies in terms of prevalence are not readily amenable to study because they signify a range of behaviours rather than a simple dichotomy. A further barrier to determining the efficacy of alternative strategies through randomised trials is that many of the techniques are readily available and blinding is usually impossible. Ethical concerns also emerge if a strategy of proved high efficacy, such as the use of male condoms, is displaced.24 The acceptability of a strategy may also hinge on cultural norms which are subject to change.25, 26 Nevertheless, a practice which may provide only limited STD protection, say 20–30%, but is used by 80% of the population may have substantially more public health impact than a strategy which has over 90% efficacy but is only acceptable to 10% of the population. Programme managers need to be mindful of the heterogeneity of STD avoidance strategies within their local population and perhaps adapt accordingly. A clinician faced with an HIV discordant couple who flatly refuse to use condoms,27 despite repeated counselling, may need to discuss withdrawal and/or diaphragm use, to promptly manage any inflammatory genital conditions, and to ensure that the HIV positive partner has the lowest viral load that is achievable.

The effects of informal STD avoidance strategies can be wide ranging. In the Philippines, up to 89% of commercial sex workers self medicate with antibiotics.28 While this is associated with some of the highest rates of drug resistant N gonorrhoeae in the world, syphilis and chancroid are relatively uncommon in this setting.28 But irregular use of broad spectrum antibiotics may also increase the prevalence of vaginitis and reduce the efficacy of oral contraceptives.

There seems to be an ongoing and profound resistance by many doctors to discuss sexuality and sexual safety with their patients.29, 30 Discussion of sexual matters, particularly with women, may be socially precluded.31 Eliciting many of the subtle attitudinal, behavioural, and cultural factors listed here requires specialist skills that are not widely available.32 Even when risk histories are adequately established, dilemmas arise for clinicians and health educators. For example, practices such as the use of vaginal drying agents26 or “negotiated safety”33 may pose some risk of HIV transmission within a relationship but, by adding quality to that relationship, they may reduce extramural HIV risk. Personal STD avoidance strategies will remain a complex and dynamic area of study, but it is a fascinating and worthwhile field.

Figure 1

“Love solution: AIDS virus killer” purchased in the foyer of an international hotel in China in 1990. For spraying on the external genitalia before sex. Listed ingredients include “Germicide No 1.”

Acknowledgments

Thanks to Virginia Wynne-Markham for preparation of the manuscript and assistance with searches. Thanks also to Graham Neilsen for his helpful comments on the manuscript.

References

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