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10 Harmful Myths About HIV/AIDS


It's OK to Have Unprotected Sex if You and Your Partner Are Both Positive

It's OK to Have Unprotected Sex if You and Your Partner Are Both Positive

Many people are unaware of superinfection (reinfection), which is defined as infection by a second strain of HIV. Even if you contracted HIV from your current partner, HIV can evolve differently in each person's body; if it mutates, a different strain can emerge in your body than in your partner's. Superinfection with a drug-resistant strain of HIV can limit treatment options.

Condomless sex between two HIV-positive partners does carry a risk for HIV superinfection, as well as other sexually transmitted diseases. However, while there have yet to be any studies examining treatment as prevention (TasP) of superinfection, studies between mixed-status couples have found zero HIV transmissions when the HIV-positive partner is on treatment and has an undetectable viral load. Watch our primer video to learn more about treatment as prevention.

Warren Tong is the senior science editor for and Follow Warren on Twitter: @WarrenAtTheBody.

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