Kristina Valladares, MS

Xingmin Sun, PhD

Two postdoctoral positions are available immediately on NIH-funded projects for qualified individuals with a PhD /MD degree to study the pathogenesis / pathogen biology, antibiotic resistance of Clostridium difficile and host immune/inflammatory responses to C. difficile infection (CDI). One position is primarily for pathogenesis, biology, antibiotic resistance of C. difficile as well as host-pathogen interactions; Second position is primarily for host immune / inflammatory responses to CDI, host-pathogen interactions and development of vaccines and novel antimicrobials against C. difficile. 

Research experience in one or two of the following areas including molecular microbiology, molecular biology, cell biology, immunology, microbiome, and animal models are preferred but not required. The lab has established all needed molecular tools for manipulating C. difficile and mammalian cells. The lab also established two animal models of CDI to support basic and applied projects on C. difficile. 

Review of applications will begin immediately. Candidates with a clear career goal are highly encouraged to apply. Candidates should submit resume and names of at least three references to Dr. Xingmin Sun, Department of Molecular Medicine, College of Medicine, University of South Florida (USF) by e-mail ( 

The physical, intellectual, and research resources at USF are substantial as exemplified by the National Science Foundation (NSF) placing USF within the top 50 national universities for research expenditures (ranked 41, January 2014) in a time of austere federal science funds.  Among public institutions, USF is ranked 25th in total research expenditures by the NSF (2013). Among all public medical schools in the United States, College of Medicine at USF now ranks 27 for research by the latest U.S. News and World Report rankings of the nation's Best Medical Schools – Research.

Ann Mathew

I am a Master student in the Biotechnology Master's program. I have recently graduated with a Bachelor in Molecular and Cellular Biology from the University of Illinois Urbana-Champaign. I am interested in the gut microbiome and preventative measures to maintain gut health.

Shaohui Wang, PhD

​​​Hiran Malinda, MD

​​​​​​Amy Amoah

I am a junior pursuing a B.S. in cell and molecular biology at the University of South Florida. My future goal is to obtain a Ph.D. in cellular biology. I am interested in studying phage biology and its applications to disease treatment. Besides research, my passion for learning also extends to education. I am fascinated by the ways in which teachers and students interact with each other and learn from one another. My goal is to obtain a faculty position at a research university so I can contribute to the knowledge base that drives scientific advancement while also being involved in improving STEM education for aspiring students.

Amy Amoah is selected to the Judy Genshaft Honors College - University of South Florida, with a major in Biomedical Sciences in the 7-Year Accelerated BS/MD program. She is interested in microbiome and C. difficile infection.

Dr. Wang is a Research Associate and works on the pathogenesis of Clostridium difficile and vaccine development.

I am a graduate student. I have recently graduated with a Bachelor of Science in Biology from Florida Gulf Coast University and am continuing my studies at the University of South Florida. My major will be Medical Sciences with a concentration of Molecular Medicine.

I am a Master student in the Bioinformatics & Computational Biology program. I have recently graduated with a Bachelor in Biology from the University of Minnesota. I am interested in genomic analysis.

​​​​​​Syed Hussain

​​​​​​Lauren Lapeter

Joshua Heuler

I am a Master student in the Biotechnology program at USF. I graduated from Medical School at Ain Sham University in Egypt. I am interested in infectious diseases with an expertise in analyzing intrinsic disorder of protein.

Ann Mathew is a second year student majoring in Microbiology and minoring in Infection control. She is planning to do a PhD after her undergraduate studies.  She is aiming to pursue a career in clinical Microbiology or Epidemiology and hoping to work with CDC in future. 

​​​Postdoc and PhD positions are open !

​​​​​​Nashwa EI Hadidy, MD, MS

Hiran is a Research Assistant. Hiran holds an MD and Master Degree in management. He works on gene cloning and protein purification for vaccine projects. 

Dr. Sun is the Principle Investigator. He has his PhD in Natural Sciences from the University of Kiel, Germany. He earned his Master Degree in Veterinary Microbiology and Immunology from the Nanjing Agricultural University. He is an Associate Professor with tenure in the Department of Molecular Medicine, College of Medicine at the University of South Florida (USF). He holds secondary appointment in the Department of Internal Medicine, Department of Cell Biology, Microbiology & Molecular Biology, and USF Genomics.  ​​Dr. Sun is a NIH Career Development Awardee. His research is supported by several NIH grants including R01, R21, R03 as well as internal seed grants and contracts.  He serves on Editorial Boards for “Infection and Immunity”, “Applied and Environmental Microbiology”. He also serves Review Editor for “Frontiers in Cellular and Infection Microbiology”, and acts as an ad-hoc reviewer for 10 other journals. In addition, Dr. Sun has been actively serving NIH study section panels. In 2018, he was awarded "Faculty Outstanding Research Achievement Award" at USF. In 2019, he was awarded "Excellence in Innovation Award". Currently, he chairs Research Committee of College of Medicine at USF.