UNF Professor Discovers Two Lyme Disease Bacteria Previously Unknown to Infect Human Patients
Dr. Kerry Clark, associate professor of public health at the University of North Florida in Jacksonville, and his colleagues have found additional cases of Lyme disease in patients from several states in the southeastern U.S. These cases include two additional Lyme disease Borrelia species recently identified in patients in Florida and Georgia.
Overall, 42 percent of 215 patients from southern states tested positive for some Lyme Borrelia species. More than 90 cases of Lyme infection were confirmed among patients from Florida, Georgia, North Carolina, Texas and Virginia. Of these southern cases, 69 percent were found to have infection with B. burgdorferi, 22 percent with B. americana and 3 percent with B. andersonii.
“For years, medical practitioners and the public have been told that Lyme disease is rare to nonexistent in the southern United States. Our earlier research demonstrated that Lyme disease bacteria were present in animals and ticks in our region,” says Clark. “The more recent evidence shows that the disease is also present in human patients in the South, and suggests that it’s common among patients presenting with signs and symptoms consistent with the clinical presentation of Lyme disease recognized in the northeastern part of the country.”
His new paper, “Geographical and Genospecies Distribution of Borrelia burgdorferi sensu lato DNA Detected in Humans in the USA,” was published in the Journal of Medical Microbiology in February. Dr. Brian Leydet in the Department of Pathobiological Sciences at Louisiana State University and Dr. Clifford Threlkeld of Ameripath Central Florida collaborated with Clark in his latest research.
