This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Genital Tract Infections (Too hot to handle!), Subject name: Gynaecology & Obstetrics
Which of the following is not sexually transmitted- 
Select and explain. 
A. Echinococcus, B. Chlamydia, C. Treponema pallidum, D. Nesseria gonorrhae
A: Echinococcus
Answer: A: Echinococcus 
Explanation: Bacterial Diseases transmitted with sexual intercourse Neisseria gonorrhoeae Chlamydia trachomatis Treponema pallidum Haemophilus ducreyi Note the list does not include Haemophilus Vaginalis, the cause of bacterial vaginosis Viruses transmitted by sexual intercourse HIV (types 1 and 2) Human T-cell lymphotropic virus type I(HTLV) HSV type 2 HPV (multiple genotypes) Other infections like Trichomoniasis( Protozoal) , Candida and Phthirus pubis