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5598 Microbiology

A 9-year-old boy presents with a migratory rash with central clearing on the back of his neck. The child had recently been on vacation with his family in Oregon and had gone hiking. The child’s pediatrician observes the rash and suspects an infection with B. burgdorferi. Which of the following is thought to be a virulence factor of this organism

AIntracellular growth in leukocytes
BExpression of outer surface proteins
CLocalization in reticuloendothelial cells
DEndotoxin release
Microbiology
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