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Health officials in Oklahoma are notifying 57 patients who tested positive for hepatitis C and three patients who tested positive for hepatitis B after visiting oral surgeon W. Scott Harrington's office in Tulsa and a city suburb, according to a joint statement issued Wednesday by the Oklahoma State Department of Health and the Tulsa Health Department.

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Dentist's former patient: How could you? "This is a complex investigation," state epidemiologist Kristy Bradley said in the statement. "The next phase will include more in-depth interviews of persons who test positive to determine the likelihood that their exposure is associated with their dental surgical procedure at the Harrington practice. We will certainly continue to keep the public informed as we learn more." Mor

FDA already has approved the use of electron beam technology as a pathogen intervention strategy to control the naturally occurring Vibrio vulnificus bacterial pathogen in shellfish.

Praveen said she and the other researchers also chose the viral pathogens as opposed to bacterial as they were more difficult to treat and also require a host species.

if a serving size of 12 raw oysters were contaminated with approximately 100 hepatitis A and human noroviruses, an e-beam dose of 5 kGy (kilograys) would achieve a 91 percent reduction of hepatitis A infection risks and a 26 percent reduction of norovirus infection risks.