Editing Q fever (section)

== History ==
[[Image:Pneumonia x-ray.jpg|right|thumb|''Image&nbsp;A'': A normal [[chest X-ray]] ''Image&nbsp;B'': Q&nbsp;fever pneumonia]]
Q&nbsp;fever was first described in 1935 by [[Edward Holbrook Derrick]]<ref>{{cite journal| vauthors = Derrick EH |date=August 1937|title='Q'&nbsp;Fever a new fever entity: clinical features. diagnosis, and laboratory investigation|url=https://onlinelibrary.wiley.com/doi/abs/10.5694/j.1326-5377.1937.tb43743.x|journal=[[Medical Journal of Australia]]|volume=2|issue=8|pages=281–299|doi=10.5694/j.1326-5377.1937.tb43743.x}}</ref> in [[slaughterhouse]] workers in [[Brisbane]], [[Queensland]]. The "Q" stands for "query" and was applied at a time when the causative agent was unknown; it was chosen over suggestions of abattoir fever and Queensland rickettsial fever, to avoid directing negative connotations at either the cattle industry or the state of Queensland.<ref>{{cite book| vauthors = McDade JE |title=Q&nbsp;Fever: The Disease | volume = I|publisher=[[CRC Press]]|year=1990|isbn=978-0-8493-5984-2|page=8|language=en|chapter=Historical aspects of Q&nbsp;Fever}}</ref>

The [[pathogen]] of Q&nbsp;fever was discovered in 1937, when [[Frank Macfarlane Burnet]] and Mavis Freeman isolated the bacterium from one of Derrick's patients.<ref>{{cite journal | vauthors = Burnet FM, Freeman M | title = Experimental studies on the virus of "Q" fever | journal = Reviews of Infectious Diseases | volume = 5 | issue = 4 | pages = 800–808 | date = 1 July 1983 | pmid = 6194551 | doi = 10.1093/clinids/5.4.800 }}</ref> It was originally identified as a species of ''[[Rickettsia]]''. [[H.R. Cox]] and [[Gordon Davis (scientist)|Gordon Davis]] elucidated the transmission when they isolated it from [[tick]]s found in the US state of [[Montana]] in 1938.<ref>{{cite journal | vauthors =  | title = Public Health Weekly Reports for DECEMBER 30, 1938 | journal = Public Health Reports | volume = 53 | issue = 52 | pages = 2259–2309 | date = December 1938 | pmid = 19315693 | doi = 10.2307/4582746 | jstor = 4582746 | pmc = 2110862 }}</ref>  It is a [[zoonotic]] disease whose most common animal reservoirs are cattle, sheep, and goats. ''Coxiella burnetii'' – named for Cox and Burnet – is no longer regarded as closely related to the [[Rickettsiae]], but as similar to ''[[Legionella]]'' and ''[[Francisella]]'', and is a [[Gammaproteobacterium]].{{citation needed|date=July 2020}}