bareback or not...

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From Washington Post article on doxy pep.
For the past decade, people have been able to have unprotected sex with a low risk of contracting HIV thanks to daily pills known as PrEP, or pre-exposure prophylaxis. But they were still susceptible to bacterial bugs, including the recent spike in syphilis, gonorrhea and chlamydia — until now.
Recent studies show the antibiotic doxycycline taken after sexual encounters works as a post-exposure prophylaxis to prevent those infections. But experts are also worried about unintended consequences. The Centers for Disease Control and Prevention plans to release guidelines later this summer for deploying the treatment, known as DoxyPEP, in hopes of addressing fears among medical professionals that preventive use would fuel antibiotic resistance — and the rise of drug-resistant superbugs.
“It’s the first major intervention we’ve had for STIs since the vaccine for human papillomavirus,” nearly two decades ago, said Jonathan Mermin, who leads STI prevention for the CDC. “But it is a new intervention, and because of that, there are potential benefits and potential risks.”
Doctors, public health officials and sexual health clinics have embraced preventive pills as a realistic way to curb STIs because they preserve pleasure while protecting partners. Some doctors have started prescribing it to a narrow segment of the gay community considered at elevated risk for STIs.

https://www.washingtonpost.com/healt...ti-prevention/