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Outbreak Investigations

Dr. Julia Gargano (CDC) develops  a survey sampling frame following a community water emergency in Alabama, 2010

Dr. Julia Painter (CDC) and Dr. Michael Gronostaj (CDC) with a team investigating a cryptosporiodiosis outbreak in Oregon, 2013

Outbreak investigations, which CDC calls "Epi-Aids," result from requests for epidemiological assistance within the United States and throughout the world. Requests to assist with emergency responses, investigate infectious and environmental disease outbreaks, and quantify impact of diseases are examples of these responses.

Our global investigations are conducted in collaboration with international partners, such as ministries of health and the World Health Organization, as well as CDC's Global Disease Detection and Emergency Response program.

The investigations below include the Epi-Aid number, the way all Epi-Aids are tracked by CDC. When available, investigations also include articles and information published in the Morbidity and Mortality Weekly Report (MMWR) and on CDC web pages.

Waterborne Disease Prevention Branch Investigations

Photo: Rachel Slayton (CDC) taking a sample in the rain from an unprotected shallow well with a pipette

Dr. Rachel Slayton (CDC) collectin a water sample from a shallow well in Harare, Zimbabwe, 2012

2014

  • Outbreak of diarrheal disease of unknown etiology – American Samoa
    • June 2014 (Epi-Aid 2014-055)

2013

  • Public health response to Typhoon Haiyan in the Philippines
    • December 2013 (Epi-Aid 2014-024)
  • Cryptosporidiosis outbreak, Oregon
    • August 2013 (Epi-Aid 2013-072)

2012

2011

Investigation of a multi-state outbreak of eye infections caused by Acanthamoeba in CDC's Emergency Operations Center

Investigation of a multi-state outbreak of eye infections caused by Acanthamoeba in CDC's Emergency Operations Center, 2011

2010

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