Reoccurring Escherichia coli O157:H7 Strain Linked to Leafy Greens-Associated Outbreaks, 2016-2019

Sydney Adams, a CDC ORISE fellow, and Dr. Johanna Salzer, a veterinary medical officer and epidemiology team lead in CDC's Division of Vector-Borne Diseases, discuss national surveillance of human ehrlichiosis caused by Ehrlichia ewingii in the United States.

Dr. Grace Marx, an infectious disease physician and medical epidemiologist with CDC's Division of Vector-Borne Diseases, and Dr. Emily Mosites, an epidemiologist at the Multnomah County Health Department in Portland, Oregon, discuss Bartonella quintana infections among people experiencing homelessness.

Cristina Rafferty, a molecular biologist with the US President's Malaria Initiative at CDC, and former Public Health Entomology for All program interns Gloria Raise and JeNiyah Scaife discuss a new loop-mediated isothermal amplification assay to detect invasive malaria vector Anopheles stephensi mosquitoes.

Dr. Carol Sobotyk, an assistant professor of clinical parasitology and director of the Clinical Parasitology Laboratory at the University of Pennsylvania, and Candice Hoffmann discuss Thelazia callipaeda eyeworms in an American black bear.

Dr. Heather Grome, a medical epidemiologist in CDC's National Center for Emerging and Zoonotic Infectious Diseases, and Candice Hoffmann discuss antimicrobial-resistant infections in children.

Dr. Jay Fishman, a professor of medicine at Harvard Medical School and director of the Transplantation Infectious Disease Program at Massachusetts General Hospital, and Candice Hoffmann discuss xenotransplantation.

Doctors Anne Kjemtrup and Kerry Padgett from the California Department of Health and Candice Hoffmann discuss a newly recognized spotted fever group Rickettsia as the cause of severe Rocky Mountain spotted fever-like illness in California.

Dr. Mihnea "Mike" Mangalea, a microbial ecologist and bioinformatician in CDC's National Center for Emerging and Zoonotic Infectious Diseases, and Candice Hoffmann discuss decolonization and pathogen reduction approaches to prevent antimicrobial resistance and healthcare-associated infections.

Dr. Gaby Frank, a hospitalist and medical director of Denver Health Hospital Authority's Biocontainment Unit and a professor of medicine at the University of Colorado School of Medicine, and Candice Hoffmann discuss Crimean-Congo hemorrhagic fever virus.

BreAnne Osborn, an epidemiologist at the Utah Department of Health in Salt Lake City, and Sarah Gregory discuss outbreaks of norovirus genotype IX in long-term care facilities in Utah.