Our Fellows


1st Year Fellows 2nd Year Fellows 3rd + Year Fellows Fellows’ highlights of their training

ID Division sponsors ID Fellows’ attendance to see “Angels in America” followed by a U=U presentation by faculty member, Matifadza G. Hlatshwayo, MD, MPH at the Repertory Theatre of St. Louis .

Our fellows hail from around the globe with interests in a variety of infectious disease topics. Read about their fellowship experiences.

The Division of Infectious Diseases welcomes five new fellows in 2020.

First Year Fellows

First Year Fellow

  • BS: Medical College, Thiruvananthapuram, Kerala India (2015)
  • MD: University of Arkansas for Medical Sciences, Little Rock AK (2019)
  • Residency: University of Arkansas for Medical Sciences, Little Rock AK (2019)
  • Chief Residency: University of Arkansas for Medical Sciences, Little Rock AK (2020)

First Year Fellow

  • BA Mathematics: University of Nebraska, Lincoln, NE (2009)
  • BS: University of Nebraska, Lincoln, NE (2009)
  • MD: Washington University School of Medicine, St. Louis MO (2018)
  • PhD: Washington University School of Medicine, St. Louis MO (2018)
  • Residency: Washington University School of Medicine, St. Louis MO (2020)



First Year Fellow

  • BS Chemistry, Biomedical Math, Biochem: Florida State University (2008)
  • MD, PhD: Washington University School of Medicine (2017)
  • Residency: Tulane University (2020)

First Year Fellow

  • MD: Central University of Venezuela, School of Medicine, Caracas, Venezuela (2011)
  • Internship in Hospital Medicine: La Trinidad Academic Medical Center, Caracas, Venzuela (2013)
  • Residency: John H. Stroger Jr. Hospital of Cook County , Chicago, IL (2019)
  • Chief Resident: John H. Stroger Jr. Hospital of Cook County , Chicago, IL (2020)

First Year Fellow

  • Bachelor’s History, Biology: Washington University School of Medicine, St. Louis, MO (2012)
  • MD: Washington University School of Medicine, St. Louis, MO (2017)
  • Residency: Washington University School of Medicine, St. Louis, MO (2020)


Second Year Fellows

Miguel A Chavez, MD, MSc

Second Year Fellow

Why did you choose an ID fellowship?
I have always loved ID since medical school in Peru, given the exposure to all the tropical diseases. However, I initially wanted to do Cardiology. Soon in residency and after an ID rotation here in the U.S., I realized again how fun and challenging the bread and butter on ID is. Also the people here are fascinating and smart. Given my epidemiology background, I would like to continue my training on Hospital Epidemiology.

Joseph N. Cherabie, MD, MSc

Second Year Fellow

Why did you choose an ID fellowship?
I chose ID at Wash U because of the breadth of experience and patient exposures the program offered. From day one they they asked what I wanted and how could they help get me there. Also the faculty across the board are fantastic and were that way from interview day.

My major areas of focus are on HIV, STIs, and LGBTQIA health. I also want to learn as much inpatient ID as possible and focus on translational research as well as health policy.

Nathanial S. Nolan, MD, MPH

Second Year Fellow

Why did you choose an ID fellowship?
I chose WUSM because it had a good balance of clinical work and academic opportunities. It also helped that it was within close proximity to my in-laws and my family. But honestly, after interviewing at WU ID, I felt like I was comparing every other program to Wash U. Unlike other programs, I felt like Wash U really seemed to have an interest in supporting the fellows and their goals rather than trying to push fellows towards pre-determined pathways. Ultimately I feel like that was a correct assessment – Dr. Kirmani and the faculty are really supportive and receptive to supporting our interests. I am very interested in medical education and I think I would like to focus on a teaching physician pathway.

Patrick B. Mazi, MD

Second Year Fellow

Why did you choose an ID fellowship?
There were many reasons I wanted to come to WUSM, though I think the more important information is how I feel about being here now. The people in our department are an amazing group. It’s been great getting to know everyone over happy hours, meals at attending homes, picnics, and the Angels in America outing. The amount of interest in the fellows and the support the entire department provides us makes for a great training environment.

I’m planning on pursuing a combination ID/CCM and would like to investigate infections and antibiotic decision-making in the critically ill.


Sasinuch Rutjanawech, MD

Second Year Fellow

Why did you choose an ID fellowship?
Because my main interest is transplant infectious diseases and I know Washington University/Barnes-Jewish Hospital is one of the largest transplant center in the US and also, in the world!! I think knowledge and experience I obtain from training here will enable me to develop excellent patient care and initiate some research when I go back to my country. When I was a medical student, one of our most popular survival guides was Washington Manual of Medicine. Not surprisingly, being here today makes me feel this is one of the greatest opportunities in my life.


Third-year fellows

Adriana M. Rauseo, MD

Third Year Fellow

Interests: My interest in ID began during my training in Venezuela where I encountered a variety of tropical infectious diseases. I

Sena Saywood, MD

Third Year Fellow

I am from Lincoln, Nebraska . I graduated with Distinction with a Bachelor of Engineering in 2011 from the College of Engineering at the University of Nebraska. I am also a graduate of the Univesrity Honors Program. I received my medical degree from the University of Nebraska Medical Center in Omaha NE.

I participated in the Enhanced Medical Edcuation Track: Quality Assurance and Patient Safety. Outside of work I enjoy reading, going to shows, and a very occasional hike.

Daniel T. Vo, MD

Third Year Fellow

I was born and raised in Fort Smith, AR. I attended medical school at UAMS in Little Rock, AR. My residency training took place at UAB in Birmingham, AL. I enjoy being outdoors particularly on a bright, warm, and sunny day.

My hobbies include running/ hiking/ exploring new trails and (more recently) fishing. I also enjoy experiencing new foods and restaraunts. I do have a sweet tooth and have known to frequently bring candy to share.

Fourth-year fellow

Laura Marks, MD, PhD

Instructor in Medicine and Fourth Year Fellow


Prior fellows with a sense of humor

Highlights from 2019 Graduate Fellows

“I’ve had a great time, and received wonderful training at WashU, from my days as an intern through my busy rotations on the ID consult services as a fellow, and for the last 3 years, working in the lab of Michael Diamond on Zika virus pathogenesis and vaccine development. I’ve made many friends and established professional relationships that I am grateful to take with me. Thanks WashU! See you all at IDWeek!” – Brett Jagger, MD, PhD

“For my medical career, I’ve never had one specific plan, but rather have been lucky enough to follow my passions as I discover them. At Washington University, I was able to get a lot of both clinical and research experience until I figured out what I enjoyed the most about Infectious Disease. I was helped along the way by great mentorship and close friendships with my co-fellows, attendings, and staff. We’re excited for the next step, but I will always look fondly upon my time in fellowship where I had the fortune to work with leaders in the field and create lifelong friendships.” – Matthew Hevey, MD

“I think what I appreciate the most from my fellowship was the incredible learning experience and the powerful support system for both my personal and professional development. I am humbled by the knowledge passed onto me by my mentors (Drs. David Warren, EP Barrette) and talented peers who have watched me grow and achieve my goals successfully.” – Kap Sum Foon, MD

“In regards to what stood out during my fellowship, I can think about many things. But, if I have to choose only one, I will go with the amazing clinic’s staff who make our job easier and take the patient care to a higher level.” – Abdullah Aljorayid, MD

“The fellowship gave me the opportunity to learn from and train with fellows and faculty whose enthusiasm for the specialty of infectious diseases is inspiring.” – Jane O’Halloran, MB BCh BAO (Hons), MRCPIMD

“If I had to highlight something in my fellowship, it would be the support I received from everyone in the ID division and especially my mentor, Andrej Spec, to pursue a career pathway based on my interests. Having shared the journey with my co-fellows was a bonus. “- Carlos Mejia, MD

“My time here at Washington University has allowed me to foster relationships with many experts in the field of infectious diseases who I know I can rely on in the future to discuss those difficult cases. I was also fortunate enough, during fellowship, to attend the IDSA Clinical Fellows Conference which introduced me to the leaders in the practice of infectious diseases and gave me insight into what makes a clinically focused infectious diseases physician great. With all the amazing experiences over these past two years I can say that my co-fellows have been a tremendous support system and I look forward to our continued friendship despite our career paths taking us in separate directions”.  – Lee Connor, MD


Highlights From 2018 Graduate Fellows

I am going to work for Geisinger Medical Center in Danville, PA as an Infectious Disease Physician and will specialize in HIV/AIDS as well as Hepatitis C care and treatment. The highlight of my fellowship was interacting, learning, laughing, and growing with well-established, internationally known, and well-respected faculty and fellows. I have learned a lot from these great people and grown to consider many of them my friends. – Darrell McBride, DO

I will be doing a Critical Care fellowship at Mercy Hospital in St. louis. My future long-term plan is to combine ID and critical care in my practice to provide care to critically ill and complex patients. I plan to stay and practice in St. Louis. I had a very wonderful experience during my training at Barnes-Jewish Hospital. The training gave me exposure to seeing a wide array of patients with varied ID issues. The friendliness and camaraderie within the department make it the best place to learn from a fellow stand-point. I thoroughly enjoyed my work in the department and saw myself grow as a budding ID physician. – Krunal Raval, MD

I will be staying at Washington University to complete the research component of my Physician Scientist Training Program. I will be performing research to further understand the pathogenesis of Acinetobacter infections, both with epidemiological studies and basic science. One thing that I took away from the program was the ability to navigate the ever-more-complex healthcare delivery system in order to optimize the care received by our patients. As Infectious Disease doctors we typically have a bird’s eye view of the system, and it is important to know how who to go to with questions and how to improve healthcare delivery. – Juan Calix, MD, PhD

Highlights From 2017 Graduate Fellows

Working with a great and hilarious class of fellows. Being given the opportunity to pursue my research interests in a supportive environment. I am thankful to all my mentors and the division for the exceptional support they have provided.
Jason Burnham, MD

I have had a wonderful time doing Infectious Disease Fellowship at Washington University. I feel so fortunate to have had the opportunity to be a part of such a great division at this outstanding academic institution. My highlights were ‘by far’ my class of fellows; we helped each other in good and bad times and we shared many laughs. I feel obligated to thank Dr. Kirmani and Dr. Powderly for supporting me throughout the two years. – Batool Eldos, MD

Highlights From 2016 Graduate Fellows

“My class of fellows are the highlight of my training here, as we have become a family, guided by our wonderful program director and division leadership. Together, we negotiated a steep learning curve and made work enjoyable. I was fortunate to have great research mentors in Dr. Powderly and Dr. Lawrence, who have helped mold my career and research interests.”
Anupam Pande, MD, MPH, 2016

“I am lucky to be working with three mentors who have a passion for infectious diarrhea (Drs. Erik Dubberke, Carey-Ann Burnham and Margie Olsen). They are exemplary scientists and are generous with their time and knowledge. I also am thankful to my career development mentors (Drs. Vicky Fraser, Bill Powderly, Hilary Babcock, Dave Warren, and Clay Dunagan), who are constant sources of support and are always there to nudge me in the right direction.” – Jennie H. Kwon, DO, 2016

“I had a wonderful experience as a fellow in the Division of Infectious Diseases. I had an amazing group of co-fellows with whom I spend most of my time both at work and outside of work. I know I have made friends for life. I have received extraordinary mentorship from Dr. Dave Warren, who has taken interest not only in my research, but also has helped me foster and further my career and personal goals. I am following a non-traditional path to academic medicine and infectious diseases, and with Dr. Powderly’s continuous support, I have had wonderful opportunities, including spending two months at the World Health Organization in Geneva, Switzerland.” – Caline Mattar, MD, 2016

“Being an ID fellow has allowed me to develop greatly in the clinical aspect of ID, which was my main goal. During my training I developed an interest in infection prevention and would like to thank my research mentor, Dr. Warren, for his guidance and constant support. I would also like to thank Dr. Hsueh for introducing me to the exciting world of antibiotic stewardship (AS) and allowing me to work with the new great AS team. Finally, big thanks to my co-fellows, whom I’m sure I will remain friends with for a long time.” – Maria Reyes Angeles, MD, 2016

“My training has greatly exceeded what I hoped for. In retrospect, I am amazed at the diversity and the complexity of the cases I have been able to see both as inpatient and as outpatient. I am most grateful for my mentors (William Powderly, MD, Margie Olsen, PhD, MPH, and Richard Hotchkiss, MD) and my collaborators. I am also very grateful that I have been able to work towards a Masters of Science in Clinical Investigation. My research has involved participation in 4 multicenter trials, and over a dozen studies of our own devising focusing on Candida, Histoplasma and Cryptococcus. Due to this work, I have been able to travel all over the United States, Central and South America, as well as Australia.
– Andrej Spec, MD, 2016