The first case of a 'highly contagious' ringworm infection spread through sex has arrived in the US, researchers say

• A sexually transmitted fungal infection, TMVII, has been reported in the US for the first time.
• The infection, which resembles eczema, often affects men who have sex with other men.
• TMVII responds to terbinafine, but another fungus, T. indotineae, shows resistance to this treatment.

Researchers in New York are warning that a sexually transmitted fungal infection that can take months to resolve has been reported for the first time in the US.

In a report published on Wednesday in the peer-reviewed journal JAMA Dermatology, medical experts highlighted the case of a man in his 30s who had just arrived in New York City.