I had a boatload of spare time on my hands this morning...
U.S. National Institutes of Health: "Vaginal candidiasis is not
considered a sexually transmitted disease. However, 12% to 15% of men will develop symptoms such as itching and penile rash following sexual contact with an infected partner." http://www.nlm.nih.gov/medlineplus/ency/article/001511.htm
Stanford University Health Clinic: "The term 'vaginitis' refers to an infection or inflammation of the vagina, which may have several causes. The three most common types are caused by three different organisms: bacteria, trichomoniasis (a one-celled organism), and yeast (a fungus). Though occasionally sexually transmitted, most commonly these infections develop spontaneously...Men can develop yeast infections as well, and pass them on to their partners. They should be treated if they exhibit redness and/or itching of the genital area." http://www.stanford.edu/group/SHPRC/index.html
University of Chicago Medicine: "Yeast infections are not generally sexually transmitted; however, uncircumcised men can harbor Candida under the foreskin. Yeast may also be transmitted between female sexual partners." http://scc.uchicago.edu/yeast.htm
Westside Pregnancy Resource Center: Candidiasis, or yeast infection, is not a true STD but can be contrated sexually, causing burning, itching and discomfort. It is treatable with over-the-counter medication, although it is commonly recurrent. http://www.w-cpc.org/sexuality/std.html
Univ. Iowa Student Health Center: "Symptoms of yeast infection can be transmitted to a male partner through oral sex and then back to the woman, which is commonly called the "Ping Pong" effect. When yeast infection is transmitted to the mouth, it commonly causes white patches inside of the cheeks and back of the throat." http://www.uistudenthealth.com/question/default.asp?asgid=33&agid=9...
Univ. Georgia Health Center: "Although monilia (yeast infection) is not considered to be a sexually transmitted infection, it is possible to catch monilia from your sexual partner. Uncircumcised males may harbor the fungus under the foreskin, which would look red and scaly." http://www.uhs.uga.edu/sexualhealth/women/vaginitis.html
Helena Corleta, MD., Obstretics & Gynecology: "Candidiasis is not considered a sexually transmitted disease (STD); however, a sexual partner may experience symptoms like itching or penile irritation. The most common symptoms in women are thick discharge resembling milk cream, as a rule accompanied by itching and intensive irritation of the vagina and vulva that may become worse at the menstruation period and with sexual intercourse." http://www.abcdasaude.com.br/artigo.php?538