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If you have any questions, please don't hesitate to contact me on my talk page. Ian (Wiki Ed) (talk) 02:19, 23 November 2016 (UTC)

Epidemiology of Ehrlichiosis

Ehrlichiosis is a nationally notifiable diseases in the United States. There have been cases reported in every month of the year, but most cases are reported during April-September. [1] These months are also the peak months for tick activity in the United States.

From 2008-2012, the average yearly incidence of ehrlichiosis was 3.2 cases per million persons. This is more than twice the estimated incidence for the years 2000-2007. [2] The incidence rate increases with age, with the ages of 60-69 years being the highest age-specific years.The highest case-fatality rates coincide with children of less than 10 years and adults aged 70 years and older. [2] There is a documented higher risk for death among persons who are immunosuppressed. [3]

Jump up ^ Biggs, Holly M.; Behravesh, Casey Barton; Bradley, Kristy K.; Dahlgren, F. Scott; Drexler, Naomi A.; Dumler, J. Stephen; Folk, Scott M.; Kato, Cecilia Y.; Lash, R. Ryan (2016-01-01). "Diagnosis and Management of Tickborne Rickettsial Diseases: Rocky Mountain Spotted Fever and Other Spotted Fever Group Rickettsioses, Ehrlichioses, and Anaplasmosis — United States". MMWR. Recommendations and Reports. 65 (2): 1–44. doi:10.15585/mmwr.rr6502a1. ISSN 1057-5987. ^ Jump up to: a b Nichols KH, Dahlgren FS, Drexler NA, Massung RF, Behravesh CB. Increasing incidence of ehrlichiosis in the United States: a summary of national surveillance of Ehrlichia chaffeensis and Ehrlichia ewingiiinfections in the United States, 2008–2012. Am J Trop Med Hyg 2016;94:52–60. Jump up ^ Dahlgren FS, Mandel EJ, Krebs JW, Massung RF, McQuiston JH. Increasing incidence of Ehrlichia chaffeensis and Anaplasma phagocytophilum in the United States, 2000–2007. Am J Trop Med Hyg 2011;85:124–31.