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"&amp;lt;h3&amp;gt;What is a Serodiscordant Couple?&amp;lt;/h3&amp;gt;&amp;lt;p&amp;gt;The term serodiscordant couple is usually used to refer to relationships where one partner is living with &amp;lt;a href=&amp;quot;https://www.verywell.com/hiv-aids-overview-3133288&amp;quot; data-component=&amp;quot;link&amp;quot; data-source=&amp;quot;inlineLink&amp;quot; data-type=&amp;quot;internalLink&amp;quot; data-ordinal=&amp;quot;1&amp;quot;&amp;gt;HIV&amp;lt;/a&amp;gt; and the other is not. Technically speaking, however, it can be used for any relationship where one person&amp;amp;#39;s &amp;lt;a href=&amp;quot;https://www.verywell.com/can-i-get-an-std-blood-test-3132740&amp;quot; data-component=&amp;quot;link&amp;quot; data-source=&amp;quot;inlineLink&amp;quot; data-type=&amp;quot;internalLink&amp;quot; data-ordinal=&amp;quot;2&amp;quot;&amp;gt;blood tests positive&amp;lt;/a&amp;gt; for a virus and the other&amp;amp;#39;s does not. It is thus also often used to refer to couples where one person is &amp;lt;a href=&amp;quot;https://www.verywell.com/living-with-herpes-3133004&amp;quot; data-component=&amp;quot;link&amp;quot; data-source=&amp;quot;inlineLink&amp;quot; data-type=&amp;quot;internalLink&amp;quot; data-ordinal=&amp;quot;3&amp;quot;&amp;gt;living with herpes&amp;lt;/a&amp;gt; and the other is not or where one is living with &amp;lt;a href=&amp;quot;https://www.verywell.com/treating-hepatitis-c-in-people-with-hiv-48867&amp;quot; data-component=&amp;quot;link&amp;quot; data-source=&amp;quot;inlineLink&amp;quot; data-type=&amp;quot;internalLink&amp;quot; data-ordinal=&amp;quot;4&amp;quot;&amp;gt;hepatitis&amp;lt;/a&amp;gt; and the other is not.&amp;lt;/p&amp;gt;&amp;lt;p&amp;gt;&amp;lt;strong&amp;gt;Also Known As: &amp;lt;/strong&amp;gt;serodiscordant relationship&amp;lt;/p&amp;gt;&amp;lt;p&amp;gt;&amp;lt;strong&amp;gt;Where the term comes from: &amp;lt;/strong&amp;gt;The term serodiscordant is made up of two roots: sero-, meaning blood and discordant, meaning different or non-matching. Therefore a serodiscordant couple is a couple who have different blood. More specifically, it&amp;amp;#39;s a couple who has different blood markers or blood tests for a particular disease.&amp;lt;/p&amp;gt;&amp;lt;h3&amp;gt;Why Scientists and Doctors Care About Serodiscordant Couples&amp;lt;/h3&amp;gt;&amp;lt;p&amp;gt;Doctors and scientists working with infectious diseases such as HIV and hepatitis C spend a lot of time thinking about individuals in serodiscordant couples\u00A0because the uninfected partners in such couples are pretty much the definition of high risk. There is, at least in couples who are having sex, a known potential route of infection, which means that individuals in serodiscordant relationships are the perfect target for &amp;lt;a href=&amp;quot;https://www.verywell.com/top-ways-to-avoid-getting-an-std-3133082&amp;quot; data-component=&amp;quot;link&amp;quot; data-source=&amp;quot;inlineLink&amp;quot; data-type=&amp;quot;internalLink&amp;quot; data-ordinal=&amp;quot;5&amp;quot;&amp;gt;prevention&amp;lt;/a&amp;gt; interventions.\u00A0 Prevention and treatment interventions such as &amp;lt;a href=&amp;quot;https://www.verywell.com/the-facts-about-hiv-treatment-as-prevention-49133&amp;quot; data-component=&amp;quot;link&amp;quot; data-source=&amp;quot;inlineLink&amp;quot; data-type=&amp;quot;internalLink&amp;quot; data-ordinal=&amp;quot;6&amp;quot;&amp;gt;treatment as prevention&amp;lt;/a&amp;gt; (TasP) and &amp;lt;a href=&amp;quot;https://www.verywell.com/is-there-pre-exposure-prophylaxis-for-herpes-3132645&amp;quot; data-component=&amp;quot;link&amp;quot; data-source=&amp;quot;inlineLink&amp;quot; data-type=&amp;quot;internalLink&amp;quot; data-ordinal=&amp;quot;7&amp;quot;&amp;gt;pre-exposure prophylaxis&amp;lt;/a&amp;gt; (PrEP) have often been targeted at members of serodiscordant couples\u00A0because they are considered to be at high-risk of either acquiring HIV (PrEP) or passing it on (TasP).&amp;lt;/p&amp;gt;&amp;lt;p&amp;gt;These couples are also a great population in which to do treatment and prevention research. Many of the studies of new HIV prevention technologies such\u00A0 (TasP) and\u00A0 (PrEP) have been performed in &amp;lt;a href=&amp;quot;https://www.verywell.com/hptn-052-treating-hiv-to-prevent-hiv-3132625&amp;quot; data-component=&amp;quot;link&amp;quot; data-source=&amp;quot;inlineLink&amp;quot; data-type=&amp;quot;internalLink&amp;quot; data-ordinal=&amp;quot;8&amp;quot;&amp;gt;heterosexual&amp;lt;/a&amp;gt; and &amp;lt;a href=&amp;quot;https://www.verywell.com/the-pros-and-cons-of-prep-in-the-real-world-3132786&amp;quot; data-component=&amp;quot;link&amp;quot; data-source=&amp;quot;inlineLink&amp;quot; data-type=&amp;quot;internalLink&amp;quot; data-ordinal=&amp;quot;9&amp;quot;&amp;gt;homosexual&amp;lt;/a&amp;gt; serodiscordant couples. Why? Because doctors know that the uninfected individuals in these relationships are likely to be exposed to HIV, which gives them the biggest bang for their buck. They have the potential to observe larger effects while treating fewer people.&amp;lt;/p&amp;gt;"^^<http://www.w3.org/2001/XMLSchema#string>
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