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Assistant Professor
Susan Tuddenham

Departmental Affiliations

School of Medicine

Contact Info

Research Interests

Microbiome; vaginal microbiome; gut microbiome; sexually transmitted infections; sexually transmitted diseases; preterm birth; HIV; bacterial vaginosis; vulvovaginal candidiasis; trichomonas; mycoplasma genitalium; gonorrhea; chlamydia; syphilis
Experiences & Accomplishments
David Geffen School of Medicine at UCLA
London School of Economics
Dr. Susan Tuddenham is an Assistant Professor in the Division of Infectious Diseases at the Johns Hopkins School of Medicine and also holds a joint appointment in Epidemiology at the Johns Hopkins School of Public Health. Dr. Tuddenham completed her Master's in Public Health at JHSPH and her Internal Medicine residency and fellowship in Infectious Diseases at Johns Hopkins.

Dr. Tuddenham's clinical interests are in HIV, sexually transmitted infections and women's urogenital health including recurrent infectious vaginitis (bacterial vaginosis, trichomonas and vulvovaginal candidiasis) and recurrent urinary tract infections. She serves on several national guidelines including as subject matter expert for the Centers for Disease Control Sexually Transmitted Infection Treatment Guidelines and on the DHHS guidelines for the Prevention and Treatment of Opportunistic Infections in Adults and Adolescents with HIV.

Her research interests involve the epidemiology of sexually transmitted infections, and the role of the human microbiome in susceptibility to and pathogenesis of urogenital infections, bacterial vaginosis, sexually transmitted infections and HIV. Some current research projects include evaluating the impact of hormonal contraception on the vaginal microbiome, the role of the rectal microbiota in susceptibility to rectal gonorrhea and chlamydia in men who have sex with men, the role of the gut microbiota in HIV pathogenesis and associations between the vaginal microbiome and pregnancy outcomes in Bangladesh.
Select Publications
See several selected publications
  • Borgogna JC, Shardell MD, Yeoman CJ, Ghanem KG, Kadriu H, Ulanov AV, Gaydos CA, Hardick J, Robinson CK, Bavoil PM, Ravel J, Brotman RM, Tuddenham S. The association of Chlamydia trachomatis and Mycoplasma genitalium infection with the vaginal metabolome. Sci Rep. 2020 Feb 25;10(1):3420
  • Tuddenham SA, Koay WLA, Zhao N, White JR, Ghanem KG, Sears CL. The Impact of Human Immunodeficiency Virus Infection on Gut Microbiota ?-Diversity: An Individual-level Meta-analysis. Clin Infect Dis. 2020 Feb 3;70(4):615-627.
  • Tuddenham S, Ghanem KG, Caulfield LE, Rovner AJ, Robinson C, Shivakoti R, Miller R, Burke A, Murphy C, Ravel J, Brotman RM. Associations between dietary micronutrient intake and molecular-Bacterial Vaginosis. Reprod Health. 2019 Oct 22;16(1):151.
  • Tuddenham S, Ghanem KG, Gebo KA, Moore RD, Mathews WC, Agwu A, Mayer K, Schumacher C, Raifman J, Berry SA. Gonorrhoea and chlamydia in persons with HIV: number needed to screen. Sex Transm Infect. 2019 Aug;95(5):322-327.
  • Tuddenham S, Ghanem KG. A microbiome variable in the HIV-prevention equation. Science. 2017 Jun 2;356(6341):907-908.