Heartland virus was first isolated in 2009 from two northwestern Missouri farmers hospitalized 60 miles apart with fever, leukopenia, and thrombocytopenia. The CDC later identified the lone star tick as the vector. There is still no specific treatment and no vaccine, and supportive care is the only option.
A single tick species, Amblyomma americanum, transmits ehrlichiosis from Ehrlichia chaffeensis and E. ewingii, tularemia, Heartland virus,…
Southern tick-associated rash illness produces an expanding red rash that looks indistinguishable from early Lyme disease, but it follows…
Bourbon virus is named for Bourbon County, Kansas, where in 2014 a previously healthy farmer with a history of tick bite died 11 days…
Despite expanding overlap with Lyme disease in the southeastern United States, Amblyomma americanum (the lone star tick) does not transmit…
Colorado tick fever virus infects red blood cell precursors in the bone marrow and rides inside mature erythrocytes for the cell's full…
Reported United States Powassan virus cases rose from a handful per year through the 1990s to roughly 30 to 50 per year by the early…