Louis M. Weiss, MD, MPH

Louis M. Weiss, MD, MPH, is Vice Chair, Academic Affairs and Research, Pathology, Co-Director, Einstein Global Health Center and Professor, Pathology and Medicine (Infectious Diseases) at Montefiore Einstein. His clinical expertise is in the treatment and diagnosis of infectious diseases, with a focus on parasitology and global health.

After obtaining his Bachelor of Arts in biology and chemistry from Lehigh University in 1978, Dr. Weiss earned his Doctor of Medicine and Master of Public Health at Johns Hopkins University in 1982. Following this, Dr. Weiss completed his internship and residency in medicine at the University of Chicago in 1985 and an infectious diseases fellowship at Einstein Montefiore in 1989.

Dr. Weiss investigates the biology of Toxoplasma gondii and its ability to cause latent infections, with a focus on the composition and structure of the T. gondii tissue cyst. He also investigates the biology of infection due to the microsporidia, with a focus on the composition of the polar tube and how it functions during microsporidian invasion of a host cell. His research has been published in numerous peer-reviewed journals, articles, books and chapters, and he has presented this research both nationally and internationally. Dr. Weiss has been a reviewer for scientific journals including mBIO, the Journal of Eukaryotic Microbiology, the American Journal of Tropical Medicine and Hygiene, PLOS Pathogens, the Journal of Infectious Diseases and Experimental Parasitology, and is an editor for mBIO and Microbes and Infection.

Dr. Weiss is board certified in Internal Medicine and Infectious Diseases. He is a Fellow of the Infectious Diseases Society of America, the American College of Physicians and the American Academy of Microbiology of the American Society of Microbiology. In 2000, Dr. Weiss was inducted into the Leo M. Davidoff Society for his outstanding teaching of medical students.