A genus of hardbacked TICKS, in the family IXODIDAE. It includes the lone star tick, Amblyomma americanum, and the Gulf Coast tick, Amblyomma maculatum, in the Americas. Amblyomma americanum is the primary vector of EHRLICHIA CHAFFEENSIS and EHRLICHIA EWINGII which cause EHRLICHIOSIS. Other Amblyomma-associated diseases include TULAREMIA and RICKETTSIOSIS.
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