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Anoka County Multi-Jurisdictional All Hazards Mitigation Plan 95 In the twin cities in 1935, a failure of the chlorination units at the public water supply plant resulted in a serious typhoid epidemic with 213 cases and 7 deaths. In 1979 an outbreak of Red Measles occurred, over 200 cases were reported. In 1952 there were 20 cases of polio reported in Anoka County. In July 2005, officials with Anoka County closed Coon Lake Beach in the City of Columbus for four days following an E. Coli outbreak that sickened at least four children. Anoka County has developed a mass clinic plan to administer vaccine and other necessary drugs in the event of an epidemic or pandemic event. This plan was tested in August 2004 during the county’s participation in the Strategic National Stockpile drill and has been revised to remediate weaknesses discovered in the plan. Anoka County and its municipalities have experienced illness and fatalities from pandemic/epidemic events, and the county is at risk of future events. The entire county would be equally impacted by pandemic/epidemic events. A detailed event lists of epidemics/pandemics that have impacted Anoka County in the past is provided in Appendix A. Animal and Vector-Based Hazards – One of the "emerging" threats to Minnesota and its citizens are vector-based threats - bacteria, insects and other animals that pose a direct or indirect hazard to humans, their food supply, or the state's economy. Vector-borne diseases diagnosed in Minnesota include: Western equine encephalitis, St. Louis encephalitis, Colorado tick fever, Rocky Mountain spotted fever, Lime Disease, tularemia, rabies, plague, and Hanta-Virus. Lyme disease is a potentially serious bacterial infection caused by the bite of an infected deer tick. The disease affects both humans and animals. The Minnesota Department of Health is monitoring the spread of the disease across the state and working with residents to limit exposure to the ticks causing the disease. In Minnesota, the area where Lyme disease is endemic is primarily the drainage basin of the St. Croix River. The ticks are endemic to Washington County along the St. Croix Valley, and to Chisago, Anoka, Pine, Mille Lacs, Crow Wing, Kanabec, and Atkin counties. As long as vectors are present in the state, the potential for recurring disease exists. Based on historical incidence, the vector-borne diseases