Prostitutes in Southeast Asia could fuel the rise of “super gonorrhea,” experts have warned.

It comes as a British man became the first person in the world to catch the strain of the sexually transmitted infection that is resistant to almost all treatments.

The two antibiotics typically used to treat the bug have been powerless to stop the super-strain, health officials warned.

The unidentified man, who had a partner in the UK, discovered he had the STI after getting tested a month after he returned from Asia, where he had “sexual contact” with a woman.

Dr. Gwenda Hughes, head of the STI section at Public Health England, said: “This is the first time a case has displayed such high-level resistance to both of these drugs and to most other commonly used antibiotics.”

Sex workers in popular getaways including Thailand could be fueling a rise in antibiotic-resistant STIs, according to Professor Johnjoe McFadden, a molecular geneticist at Surrey University.

He told MailOnline: “Anyone who has frequent sex is more likely to have gonorrhea and the more frequent, the more likely they are to pick up a resistant strain.

“Obviously people who have sex most often in this part of the world are prostitutes,” he added, refusing to pin the blame solely on sex tourism.

The disease is particularly worrying because there is no “obvious set of drugs we could move on to,” according to Dr. Richard Stabler from the London School of Hygiene & Tropical Medicine.

Sexual infection experts have warned the super gonorrhea case is a “worrying sign” of things to come, adding this will continue to occur in the UK.

Peter Greenhouse, of the British Association for Sexual Health and HIV, said the UK faces a “perfect storm,” with more people sleeping around and government cuts to health funding stoking the fire.

“We have a perfect storm, just at a time when these infections are becoming seriously resistant to antibiotics.

“It is harder to get a sexual health checkup, especially in London, where six major clinics have had to close and people are changing sexual partners much more frequently thanks to dating apps like Tinder and Grindr.

“When you multiply it together, you couldn’t have planned a worst case scenario.”

Greenhouse said thankfully, this man was treated with an old drug, used years ago.

But, he warned, the drug is powerless to treat the super-STI when it infects a person’s throat after oral sex — the most common way gonorrhea is transmitted.

In this man’s case, Greenhouse said, he was lucky to have caught “super gonorrhea” from vaginal sex or having oral sex performed on him.

Hughes said the PHE team is investigating the case to reduce any potential spread of the super-resistant bug.

She added: “It is better to avoid getting or passing on gonorrhea in the first place and everyone can significantly reduce their risk by using condoms consistently and correctly.”

It comes amid repeated warnings that super gonorrhea could pose a threat as it becomes more resistant to treatment.

Last year the World Health Organization warned antibiotic-resistant strains of the STI are becoming much harder and sometimes impossible to treat.

One in 10 men and almost half of infected women will not experience any symptoms.