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3. Water Production Manager and MCHD representative carry out response/action <br /> plan. <br /> A. Health risk no longer suspected <br /> Event determined to be false alarm- no further action necessary. <br /> B. Health risk indeterminate at current time ' <br /> Continue heightened monitoring or surveillance for agreed-upon period <br /> and report information back to Executive Group members. <br /> C. Health risk suspected-two levels: (Health risks are rarely defined , <br /> clearly, and local realities should be the deciding factor.) I <br /> Level I-health risk possible for immunocompromised(HIV-AIDS, Chemotherapy, <br /> organ-transplant)persons: <br /> • MCHD and the City will prepare notice for immu.nocompromised persons 'I <br /> that an increased level of suspicion exists regarding the possible presence of <br /> parasites in the water supply. The notice will be sent to the media and hospitals. <br /> • Include in the media release that no risk for the general public is suspected at <br /> this time. <br /> • Increase epidemiologic surveillance; MCHD will be on the alert for <br /> evidence of any increase in diarrheal disease through review of reports <br /> from the hospitals and nursing homes. MCHD may request that the <br /> hospitals, clinics, or personal physicians request tests for <br /> Cryptosporidium and other suspected pathogens when appropriate. <br /> Level II- health risk possible for general population <br /> • Strongly recommend water use precautions for immu.nocompromised <br /> individuals; utilize the media to reach these populations with disease <br /> prevention information. (City) <br /> • Advise the public that they may also wish to take these precautions. (City) <br /> • Institute more active epidemiologic surveillance - MCHD will <br /> telephone physicians, pharmacists, clinical laboratories,hospitals, and <br /> nursing homes to inquire about any evidence of increase in diarrheal <br /> disease and/or Cryptosporidium findings. <br /> 2 <br />