👉 Listeriasis is a sexually transmitted infection (STI) that can affect any part of the body, including the skin, eyes, throat, respiratory tract, and genitalia. It primarily affects individuals who contract the bacteria from an infected person or animal through sexual contact, droplet transmission, or contaminated food and water. Symptoms may include fever, chills, cough, chest pain, fatigue, sore throat, difficulty breathing, and rash (an itchy red spot on the skin). Treatment