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Pediatric Infectious Diseases

Pediatric Antimicrobial Stewardship Program

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  Subhash Chaudhary, MD

Dr Subhash Chaudhary is the Chief of the Division of Pediatric Infectious Diseases. He earned his medical degree from All India Institute of Medical Sciences, New Delhi, India. Since completing residency in Pediatrics and fellowship in Pediatrics Infectious Diseases at St. Jude Children's Research Hospital he has been at SIU School of Medicine. He is the Chairman of Infection Prevention and Control at St John’s Hospital. He served as Chairman of Pediatrics at Memorial Medical Center for 21 years. He has authored work on Pneumocystis Pneumonia and Group A Streptococcal infections in children.

 Marcela Rodriguez, MD

Dr. Marcela Rodriguez is an associate professor of pediatrics at Southern Illinois University School of Medicine, specializing in infectious disease. She also is a member of SIU Medicine, the medical school’s practice group. Dr. Rodriguez completed a three-year fellowship in pediatric infectious disease at Washington University School of Medicine in St. Louis (2011).  She completed her pediatric residency at SIU (2008) and her medical degree at Libre University in Cali, Colombia (2001). Dr. Rodriguez is board certified in Pediatrics and Infectious Diseases by the American Board of Pediatrics and is a member of the American Academy of Pediatrics, the Pediatric Infectious Diseases Society and the Infectious Diseases Society of America. A native of Colombia, she is married and has one child.

Dr. Ezzeldin Saleh Ezzeldin Saleh, MD

Ezzeldin Saleh, MBBS, is an Assistant Professor of Pediatrics at Southern Illinois University School of Medicine, Division of Pediatric Infectious Diseases. Dr. Saleh completed his Pediatric Infectious Diseases fellowship training at Duke University Medical Center in Durham, North Carolina (2017). He completed his pediatric residency training at Penn State Hershey Medical Center (2003). He earned his medical degree from the University of Khartoum in Sudan. Previously he was practicing as a general pediatrician in the Mayo Clinic Health System in La Crosse, Wisconsin (2008-2013).

Clinical and Research Interests

Dr Chaudhary has interest in early diagnosis of infection and prevention and control of infections.

Dr Rodriguez has interest in clinical research and pediatric antimicrobial stewardship. She is currently involved in clinical research in Community associated S. aureus skin and soft tissue infections and in congenital CMV infections.


Patient Care

The Division of Pediatric Infectious Diseases provides a full-time consultation service for patients admitted at HSHS St. Johns Children’s Hospital in the Neonatal ICU, Pediatric ICU and General Pediatrics Floors from newborns till 18 years of age. In addition the division provides consultation services in Memorial Medical Center in the Level 2 nursery.

Patients referred for evaluation or management of a variety of infectious diseases are seen in our General Infectious Diseases Clinics, held on Monday, Wednesdays and Friday mornings and Thursdays afternoons at the Women & Children's Clinic at 400 N. 9th Street in Springfield. All hospital follow ups are also done during the same clinic time.

Conditions treated in the Pediatric Infectious Diseases Clinic are

  • Conditions producing diagnostic dilemmas such as recurrent fevers, fever of unknown origin, recurrent infections.
  • Bacterial infections including skin and soft tissue infections, lung infections, osteoarticular infections, lymphnodes infections, ocular or ear infections, central nervous system infections
  • Histoplasmosis
  • Kawasaki disease
  • Tick transmitted or other vector borne diseases
  • Unusual infections caused by pathogens such as fungus, mycobacteria or drug resistant organisms
  • Opportunistic infections in immunosuppressed patients due to acquired or congenital immunodeficiency
  • Infants born to HIV positive mothers

Other specialized clinical services

  • Travel clinic: the travel clinic provides pre and post-travel consultations for any person traveling for leisure, work or volunteering. The pediatric infectious disease specialist assists patients to plan for a safer trip by providing tailored health recommendations specific to travel destinations.
  • International Adoption Clinic: this service provides a thorough review of vaccination needs and screening for infectious diseases; in addition these children receive a development/psychological evaluation, hearing assessments and occupational and physical referrals as needed
  • Telemedicine consultation services


Third-year medical students rotate through the Pediatric Infectious Diseases Service during their 4 weeks of Pediatric Clerkship. Fourth year medical students can do a 2 or 4 week elective in our service. Pediatric residents also participate in the Infectious Diseases Rotation. They participate in the inpatient consultation service and outpatient clinic services and in our educational conferences including ID case conference and ID journal club weekly.

The Pediatric Infectious Diseases Division also provides Pediatric Grand Rounds, multiple core conferences to residents and board review sessions for pediatric residents and family medicine residents.