The origin of the virus is still under investigation, but samples in New York are genetically linked to polioviruses found in London and Jerusalem wastewater.
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Division Director
Dr. Stephanie R. Bialek, MD, MPH, is the director of the Division of Viral Diseases in CDC’s National Center for Immunization and Respiratory Diseases (NCIRD), since 2020. Dr. Bialek, a captain in the United States Public Health Service, leads a division with 4 branches, 27 programs, and over 300 staff, fellows, and contractors.
During her career, Dr. Bialek has worked on a wide range of domestic and international public health programs. She joined CDC as an Epidemic Intelligence Service officer in 1999 and worked in the Division of Viral Hepatitis. After completing the practicum year of her residency in Preventive Medicine at the Georgia Department of Public Health in 2003, Dr. Bialek returned to the Division of Viral Hepatitis as a medical epidemiologist working on hepatitis B vaccine effectiveness and chronic hepatitis B and C.