STI known as MG could have infected hundreds of thousands in UK

Study finds further evidence Mycoplasma genitalium, which has few symptoms, is sexually transmitted and may be present in 1% of adults under 45

A sexually transmitted infection could have infected hundreds of thousands of people in the UK, research suggests.

Mycoplasma genitalium, known as MG, has very few symptoms but is now known to be passed on through sex. It is estimated to affect 1% of 16- to 44-year-olds who report having had at least one sexual partner.