Fellows’ Corner – what are they up to?

Incoming FY 2022 Fellows with 2nd year and graduate fellows. Building family.

Program Directors and Graduates 2021 (l-r) Dr. Nigar Kirmani, program director, Drs. Patrick Mazi, Joseph Cherabie, Miguel Chavez, Nathan Nolan, Sasinuch Rutjanawech, and Gerome Escota, MD, program co-director.

Second year fellow, Garyathri Krishnan, MD, creates online platform for women professionals in the field of Infectious Diseases
collaborate, promote, support, advocate, embrace, encourage, nurture each other and celebrate all the amazing work being done by women in the field of Infectious Diseases.

Read more»


Gayathri Krishnan, MD, first year fellow, submitted a recently published paper. 

Comparison of Blood (1->3)-β-D-Glucan Levels in AIDS-Related Pneumocystis jirovecii Pneumonia and AIDS-Related Progressive Disseminated Histoplasmosis. Michael Saccente, Gayathri Krishnan. Clinical Infectious Diseases, ciab277, https://doi.org/10.1093/cid/ciab277. Relevance : Beta D glucan is a noninvasive test used for diagnosis of fungal infections and is helpful in patients with immunosuppressed conditions. 

Dr. Krishnan et al also published a case report in the Arkansas Journal of Medicine, “GCA Masquerading as Altered Mental Status and Diarrhea”.

Miguel Chavez Concha, MD, MSc, receives Jonathon Freeman Award
Miguel Chavez Concha, MD, MSc, first year fellow, is a 2021 recipient of the Jonathan Freeman Scholarship. The award is was established by SHEA to promote the training of outstanding infectious disease fellows who demonstrate interest in the field of healthcare epidemiology. The award is intended to support infection control professionals’ scholarly activities in hospital epidemiology. Miguel’s mentor is David K. Warren, MD, MPH, professor of medicine in infectious diseases.

Miguel will present at the SHEA Spring Conference 2021, Abstract 168: Identification of Potentially Unnecessary Micafungin Use Patterns: Opportunities for Antifungal Stewardship Interventions

ID Fellows create video during COVID-19 pandemic to show prospective fellow candidates what fellowship is like at WashU – read more

This video was directed and produced by our fellows.

Second Year Fellows
Miguel A Chavez, MD, MSc
Joseph N. Cherabie, MD, MSc
Nathanial S. Nolan, MD, MPH
Patrick B. Mazi, MD
Sasinuch Rutjanawech, MD
Third Year Fellow
Adriana M. Rauseo, MDFourth Year Fellow
Juan Calix, MD, PhD


Armaghan-e-Rehman Mansoor, MD, first year fellow presented a poster at IDWeek 2020, Increasing incidence of obstructive sleep apnea in patients with HIV: A nationwide database analysis.

Oral presentation: A nationwide analysis of the trends and outcomes of Cryptococcal Meningitis in the United States. Mansoor
A., Sarwari A.R. IDWeek 2020, October 2020


Daniel Vo, MD, second year fellow presents two posters at IDWeek 2020.

Session Title: Clinical Practice Issues
Poster Title: Clinical outcomes and healthcare utilization in uninsured patients requiring long-term antibiotic therapy
Submission ID: 911495
Role: Presenting Author

Session Title: HIV: Treatment
Poster Title: Weight change associated with switching to bictegravir/emtricitabine/tenofovir alafenamide in virally suppressed people with HIV
Submission ID: 911075
Role: Presenting Author


Joseph Cherabie, MD, MSc, second year fellow presents poster at IDWeek2020 on “Long-term Mortality after Histoplasma Infection in People Living with HIV”.




Patrick Mazi, MD, second year fellow, presents two posters:

Session Title: Eukaryotic Diagnostics
Poster Title: Epidemiology and Outcomes of Invasive Fungal Infections Following Civilian Trauma
Submission ID: 893812
Role: Presenting Author

Session Title: Respiratory Infections – Bacterial
Poster Title: Impact Of Resistance Thresholds On Mortality In Hospital-Acquired And Ventilator-Associated Pneumonia
Submission ID: 906586
Role: Presenting Author


Gayathri Krishnan, MD, first year fellow, presented two posters at IDWeek 2021.

Our 2020 Graduates


Nathanial S. Nolan, MD, second year ID fellow, joins Steven Y. Liang, MD, an associate professor of medicine in the Division of Infectious Diseases ,to create a new episode of ‘Show Me the Science’, produced by the Office of Medical Public Affairs at Washington University School of Medicine in St. Louis and discusses  the risks of COVID-19 faced by unhoused people in the St. Louis region.

Visit this ‘Show Me the Science’ podcast.


Juan Calix, MD, PhD, ID fellow alum 2020, joined the Department of Medicine in the Division of Infectious Diseases as an Instructor in April 2020.

Nathan Nolan, MD, MPH, 1st year fellow, served on one of the American Medical Association (AMA) Reference Committees at their interim meeting November 16-20, 2019. The Reference Committee hears the testimony to present a consensus report for review to the house of delegates. Dr. Nolan represented the American College of Physicians as a Delegate to the AMA and served on their 2019 Interim Meeting of the AMA House of Delegates. His position is one year.


Sasinuch Rutjanawech, MD, 1st year fellow – Poster#1699 Presentations and Outcomes of Histoplasma Capsulatum Infection Vary by Immune Status: A Retrospective Cohort Study and 2108 Comparison of Voriconazole versus Itraconazole in the Treatment of Histoplasmosis – A Retrospective Analysis

Frances Lahrman, DO IDWEEK 2019

Frances Lahrman, MD, 2nd year fellow – Poster #1474 – Epidemiology and Outcomes of Hospitalized Patients with Urinary Tract Infections (UTI) due to Multidrug-Resistant Organisms (MDRO).

Adriana Rauseo, MD, 2nd year fellow – Poster #2570 A Randomized Controlled Trial of Lactobacillus rhamnosus GG on Multidrug Resistant Organism (MDRO) Colonization

Laura Marks, MD, PhD at IDWeek 2019

Laura Marks, MD, PhD, 3rd year fellow, presented a poster #213 A Comparison of Medication Assisted Therapy Treatment Strategies for Opioid Use Disorder in Persons who Inject Drugs and are Hospitalized with Serious Infections

Juan Calix, MD, PhD, 4th year fellow, Instructor of Medicine completing Physician Scientist Training Program Poster #546 Seasonal changes in the prevalence of antibiotic-susceptible Acinetobacter baumannii results in increased multidrug resistance rates during winter months

Laura Marks, MD, PhD, second year fellow, had a featured case in the New England Journal of Medicine of Glandular Tularemia.A 68-year-old man from Missouri presented to the primary care clinic with a history of 1 week of fever followed by 2 months of progressive, painful swelling on the right side of his neck.Two days prior, his cat died. Serologic testing with IgM antibody was positive for Francisella tularensis (titer, 1:1280). A diagnosis of glandular tularemia was made. Glandular tularemia is the second most common manifestation of tularemia after the ulceroglandular form. Because culture requires biosafety level 3 conditions, diagnosis is often confirmed serologically. Domestic cats can become infected through the consumption of infected prey and can transmit the bacteria to humans. The patient was treated with doxycycline for 4 weeks; the lesions improved within 5 days and resolved within 3 weeks.

CONGRATULATIONS…Katie and Lee Connor celebrate their newest addition, Finn Garrett Connor. He was born on September 28, 2018 at 1:15 am. He was 7lbs 1 oz and 20.3 inches long. Katie is a registered dietitian and Lee is an Infectious Diseases Fellow. Baby Finn has one brother, an eight-year-old cat, named Winston. 

Second year ID fellow, Matt Hevey, MD, presented a poster on the “Presentation and Outcome of Cryptococcal Infections” at the Mycoses Study Group Education & Research Consortium Biennial meeting “Clinical Mycology Today” in Big Sky, Montana on September 28, 2018.


First and second year fellows receive travel grants to IDWeek 2018

First year fellows, Matthew Hevey, MD and Kap Sum Foon, MD, along with second year fellows, Abdullah Aljorayid, MD, Juan Calix, MD, PhD, Carlos Mejia, MD, and Jane O’Halloran, MD, PhD, will be attending IDWeek 2018 October 3-7 in San Francisco, CA. Each have submitted abstracts which have been accepted for poster presentations and awarded IDWeek Trainee Travel Grants.

Congratulations, ID fellows!

2018 ID Division Annual Spring Picnic – hosted by second-year fellows

A great time was had by all in attendance at the second year fellows’ picnic. This is an annual occasion when 2nd year fellows plan, organize, bar-b-que and serve up a delicious meal for ID Division faculty and staff. This year’s picnic was located in Tower Grove Park which affords plenty of room to play soccer with adults and the little ones, and to gather in the shade beneath the Turkish Pavilion.

second year fellows, Krunal Raval, MD, Carlos Mejia, MD, with Betsy Keath, PhD and Bill Powderly, MD, ID division co-director.

Second year fellows receive travel grants to IDWeek 2017

Carlos Mejia, MD, Jane O’Halloran, MD, PhD, and Krunal Raval, MD will be attending IDWeek 2017 October 4-8 in San Diego, CA. Each have submitted abstracts which have been accepted for presentations.

Carlos’s abstract was accepted for an oral presentation. Jane and Krunal will be presenting posters.

They all have been selected to receive IDWeek Trainee Travel Grants. Congratulations, second year fellows!

Matifadza (Mati) Hlatshwayo, MD presents at Pulmonary Research Day

Mati Hlatshway, MD 2nd year fellow, presented a poster entitled “Risks for COPD in HIV-infected Individuals Using Symptom-Based Scores and Spirometry” at the Pulmonary Research Day on March 9, 2017 hosted by Washington University School of Medicine Division of Pulmonary and Critical Care Medicine. Pulmonary Research Day is a half-day conference developed to showcase and promote pulmonary and critical care research at Washington University and to foster collaboration, communication, and mentorship between the faculty and trainees from multiple departments and divisions on campus. The conference includes a keynote presentation by alumnus from the training program and shorter talks and a poster sessions to highlight current basic and clinical research activities

Jason P. Burnham, MD, receives Jonathon Freeman Award

Jason P. Burnham, MD, 2nd year fellow, is a 2017 recipient of the Jonathan Freeman Scholarhip.

The Scholarship was established by SHEA to promote the training of outstanding infectious disease fellows who demonstrate interest in the field of healthcare epidemiology.

In January 2017, Jason presented his work on readmissions in patients with multidrug-resistant organisms (MDROs) infections at the CDC Epicenters Workgroup meeting in Atlanta, GA. CDC’s Prevention Epicenters Program is a unique research program in which CDC’s Division of Healthcare Quality Promotion (DHQP) collaborates with academic investigators to conduct innovative infection control and prevention research. Washington University School of Medicine in St. Louis (WU), Barnes-Jewish Hospital (BJH), and BJC Healthcare (WU/BJC Epicenter) is among 11 epicenters nationally.

In addition, Jason recently received a “Just-in-Time ” award, funded by the Institute of Clinical and Translational Sciences. His project is “Critical Care and Infectious Diseases: A Survey Study Addressing Attitudes Toward Collaboration”.

Jane O’Halloran, MD, 1st year fellow receives CROI
2017 Young Investigator Scholarship Award

Jane O’Halloran, MD, 1st year fellow received a Conference on Retroviruses and Opportunistic Infections (CROI) 2017 Young Investigator Scholarship Award. These awards are limited and highly selective. Dr. Halloran will be presenting an abstract titled, “Effect of ART on Monocytes Cholesterol Efflux and HDL function” at the CROI 2017 in Seattle, WA February 13 – 16.

Brett W. Jagger, MD, PhD co-authors manual chapter

Brett W. Jagger, MD, PhD, 2nd year fellow co-authored the chapter “Cellulitis” in The Washington Manual Subspecialty Consult Series, General Internal Medicine Consult, 3rd Edition. Contributing faculty authors include Erik R. Dubberke, MD, Gerome V. Escota, MD, Kevin Hsueh, MD, Steven Y. Liang, MD, Lemuel R. Non, MD, Shadi Parsaei, MD, and Hilary E. L. Reno, MD.

Mati Hlastshwayo, MD, “new beginning”

Mati Hlastshwayo, MD, 2nd year fellow, and her husband, pediatric resident at St. Louis University, Jesse Davis, MD, celebrated the birth of their daughter, Aneni, on November 29, 2016.


2nd year fellows receive Knowlton Award for Excellence


Jason Burnham, MD, Bill Powderly, MD, co-director of the ID division, and Brett Jagger, MD, PhD

Brett Jagger, MD, PhD and Jason Burnham, MD, 2nd year fellows, each received a Knowlton Incentive Award for Excellence from the Barnes Jewish Foundation on October 17.

The Knowlton Incentive for Excellence Award program recognizes resident physicians who have demonstrated the ability to balance exceptional, compassionate care with a commitment to being leaders in the science of internal medicine. These residents embody the Knowlton Spirit. Since 1985, nearly 160 select physicians have received this prestigious award and have carried the Knowlton Spirit with them throughout their medical careers.

IDWeek 2016 Travel Grants

Congratulations to Jason Burnham, MD, 2nd year fellow in training for receiving an IDWEEK Trainee Travel Grant to help defray the costs of attending the IDSA 2016 Conference. Merilda Blanco Guzman, MD, Lemuel Non, MD, Anupam Pande, MD and Andre Spec, MD, all Instructors in Medicine, also received Travel Grants.

2016 fellows’ annual spring picnic – hosted by second-year fellows

Merilda, 2nd year fellow, was "Chef" for the picnic.

Merilda, second-year fellow, served as the lead organizer for the meal.

second year fellows

Our second year/graduating fellows, Merilda, Lemuel, Maria, Caline and Anupam

faculty and incoming

Matt Kuhlmann, (assistant professor) Andrej Spec (third-year fellow), Brett Jagger (second-year fellow), Carlos Mejia and Krunal Raval (incoming fellows), and Bill Powderly, Division co-director

Jenn Philips (assistant professor), Dave Warren (associate professor) and Calne Mattar, (second year fellow)

Jenn Philips (assistant professor), Dave Warren (professor) and Caline Mattar, (second-year fellow)

Gary Weil (asisstant professor), E.P. Barrette (associate professor), and Jennie Kwon (instructor of medicine)

Gary Weil (professor), E.P. Barrette (associate professor), and Jennie Kwon (instructor of medicine)

First-year fellow, Jason Burnham, accepted to the MTPCI program

Jun 28, 2016
Jason Burnham, MD

Jason Burnham, MD

The MTPCI is the postdoctoral Mentored Training Program in Clinical Investigation, which provides multidisciplinary clinical and translational research training to promote the career development of junior faculty and postdoctoral fellows by helping them become clinical and translational researchers. The title of my project that was accepted into this program is “Readmissions for multi-drug resistant infections among patients with prior multi-drug resistant organism infections.” – Jason Burnham, Fellow

Jonathan Freeman Scholarship Award from SHEA Spring 2015 

Award recipients (from left): Abigail Carlson, Michael Durkin, Valerie Cluzet, Pretti Mehrotra, Rossana Rosa and Dana Mazo

Abigail Carlson, MD, fellow in training, and Mike Durkin, MD (instructor in Medicine now) received the Jonathan Freeman Scholarship Award from SHEA Spring 2015 meeting: Science Guiding Prevention in Orlando, FL.  The Jonathan Freeman Scholarship was established by SHEA to promote the training of outstanding infectious disease fellows who demonstrate interest in the field of healthcare epidemiology.

Abigail Carlson, MD, received the Outstanding Citizen Award from Postdoctoral Mentored Training Program in Clinical Investigation (MTPCI).  This award is given each year to top Clinical Research Training Center scholars who are identified by the Directors as the most engaged, respectful, and always willing to provide support and constructive feedback to their peers and the program.


Society for Healthcare Epidemiology of America (SHEA) 2015

Abby Carlson, MD presented a poster at SHEA 2015 conference titled: “Urine Culturing Practices in a Large Academic Medical Center.”

Jennie Kwon, DO presented a poster at the SHEA 2015 conference titled: “Correlation of Clostridium difficile Enzyme Immunoassay Results with Clinical Signs and Symptoms of Clostridium difficile Infection.”

Cryptococcus Infection Network Cohort Study for non-HIV patients (CINCH) 2015

Andrej Spec, MD, fellow in training, was selected to serve as a Sub-study Steering Committee Member of CINCH 2015, sponsored by the NIH/NIAID.

International Society of Human and Animal Mycology (ISHAM) 2015

Andrej Spec, MD presented a poster, “End Stage Liver Disease is a Strong Predictor of Mortality in Cryptococcosis,” at the 19th ISHAM 2015 Congress in Melbourne Australia.


Jennie Kwon, DO, third-year fellow in training and Cynthia Monaco, MD (instructor in medicine now), received IDWeek 2015 Trainee Travel Grants to help defray the costs of attending the IDSA 2015 Conference.

IDWEEK 2014 program mentee

ID mentor _ spec_cropped more

Andrej Spec, MD

For Andrej Spec, MD, infectious disease is not only a career, it’s a passion, a chance to solve patient health mysteries and unearth remote but meaningful disease connections. As a fellow, Dr. Spec was paired for IDWeek’s mentorship program with Carol A. Kauffman, MD, a professor at the University of Michigan Medical School and chief of the Infectious Diseases Section at the Veterans Affairs, Ann Arbor Healthcare System.