View source for Southern tick-associated rash illness

== Microbiology ==

* Unknown; although ''Borrelia lonestari'' has been proposed as the causative organism, this has not been confirmed

== Epidemiology ==

* Transmitted by the Lone star tick, ''Amblyomma americanum'', with a presumed deer reservoir
* Present in southern and south-east US

== Clinical Manifestations ==

* Incubation period of [[Usual incubation period::6 to 9 days]]
* [[Causes::Erythema migrans]], similar to [[Lyme disease]]

=== Coinfections ===

* [[Human monocytic ehrlichiosis]]
* [[Heartland virus]]
* [[Q fever]]

== Differential Diagnosis ==

* Lyme disease

== Management ==

* Reasonable to treat similarly to Lyme disease
* Doxycycline for 10 to 30 days, or amoxicillin, or cefuroxime
* Longer treatment favoured for signs of disseminated disease

[[Category:Vector-borne infections]]