Infectious Diseases Physicians

David J. Tweardy, MD, is chief of the section of Infectious Diseases, and a professor in the department of Medicine. He is board certified in internal medicine and infections diseases. Following undergraduate studies at Princeton University, Dr. Tweardy earned his medical degree from Harvard Medical School, Boston. He completed an internship and residency in internal medicine and a fellowship in infectious diseases at Case Western Reserve University Hospitals of Cleveland, OH, where he was chief medicine resident. He also served as a research associate in infectious diseases at Case Western Reserve University, and as an associate scientist at The Wistar Institute in Philadelphia. Dr. Tweardy's clinical research interests include the impact of trauma and shock on host susceptibility to hospital-acquired infections and the role of the inflammatory response in infection.


Sarah E. Allen, MD, associate professor of Medicine, is board certified in internal medicine and subspecialty certified in infectious diseases. Dr. Allen earned her medical degree from the University of Louisville School of Medicine in Kentucky, followed by an internship in internal medicine at California Pacific Medical Center in San Francisco. She completed her residency in internal medicine and fellowship in infectious diseases at the University of New Mexico Hospital, Albuquerque, NM. Dr. Allen's areas of interest include adult cystic fibrosis, HIV, drug resistant bacterial infections and osteomyelitis.


Saima Aslam, MD, MS, is an assistant professor of Medicine in the section of Infectious Diseases at Baylor College of Medicine (BCM). Dr. Aslam earned her medical degree from Aga Khan University in Pakistan. Her training includes an internal medicine internship, residency and fellowship at BCM. She also earned a master's degree in clinical investigation from the Graduate School of Biomedical Sciences at the College. Dr. Aslam is board certified in internal medicine and infectious diseases. She specializes in infections in immunocompromised patients, including those with HIV, complications from cancer chemotherapy and general infectious diseases. Her interests include treating patients with vascular catheter infections and device-associated infections, including those with prosthetic joint implants. Dr Aslam received a research grant from the National Institutes of Health to study novel management strategies for patients with dialysis catheter infections.


William P. Goins II, MD, MPH, is an assistant professor of Medicine in the section of Infectious Diseases at Baylor College of Medicine. He earned a medical degree from Louisiana State University Health Sciences Center in New Orleans and a master's degree in public health from Vanderbilt University School of Medicine in Nashville, TN. His training includes an internship in internal medicine at the University of Utah Health Sciences Center in Salt Lake City, a residency in internal medicine at Carraway Methodist Medical Center in Birmingham, AL and a clinical fellowship in infectious diseases at Vanderbilt University School of Medicine. Dr. Goins specializes in hospital epidemiology and vaccination of healthcare workers.


Hoonmo L. Koo, MD, MPH, is an assistant professor of Medicine in the section of Infectious Diseases at Baylor College of Medicine (BCM). Dr. Koo earned a medical degree from the University of Texas Medical School at Houston and a master's degree in public health from the University of Texas School of Public Health in Houston. His training includes an internal medicine residency at the University of Texas Southwestern Medical Center in Dallas and an infectious diseases fellowship at BCM. Dr. Koo's volunteer service includes participation in medical mission trips to underprivileged communities in China, Mexico and Uganda. He specializes in food borne and diarrheal illnesses, and diseases primarily found in tropical and subtropical climates.


Mark Parta, MD, is an assistant professor of Medicine in the section of Infectious Diseases at Baylor College of Medicine. Dr. Parta earned a medical degree and a master's degree in public health and tropical medicine from Tulane University in New Orleans, LA. He trained in internal medicine at New York University/Bellevue Hospital Center in New York City. Dr. Parta completed his clinical fellowship in infectious diseases at the National Institutes of Health's National Institute of Allergy and Infectious Diseases in Bethesda, MD, with research in molecular mycology and time as a research associate in the biochemical virology section of the Laboratory of Molecular Microbiology. A board-certified physician, Dr. Parta specializes in infections in immunocompromised patients. He has taught HIV medicine in China, and participated in HIV and tuberculosis research in Africa. Dr. Parta was also an attending physician in the infectious diseases consultation service of the Clinical Center of the National Institutes of Health. During his tenure with the center, Dr. Parta treated patients with infectious complications of diverse cancers, hematological diseases and other immunodeficiencies.


Laila Woc-Colburn, MD, DTM-H, assistant professor of Medicine, is board certified in internal medicine and infectious diseases. Dr. Woc-Colburn received her medical degree from Universidad Francisco Marroquín in Guatemala City, Guatemala. Her extensive training includes an internship and residency in internal medicine at Advocate Illinois Masonic Medical Center in Chicago. Dr. Woc-Colburn also completed an infectious diseases fellowship and a diplomate in tropical medicine and international health at Case Medical Center University Hospital in Cleveland where she was chief fellow. Dr. Woc-Colburn's clinical interests include tropical medicine and HIV/AIDS infections.

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