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Genesee County Legionnaires’ Disease investigation update

Shannon and | have worked out estimated illness onset dates for the Legionnaires’ disease cases and these are now displayed in graphs in the attached document. One graph shows the dates by day (keyboard effect) and the second shows the dates by month. When | was speaking with Suzanne C at ELC, she was under the impression that the peak was in September — which it is by MDSS referral date, but plotting by illness onset date shows both August and September were peak months. A lesson is the advantages of why we do epi curves! Lily has successfully completed one interview of the very first case and says she will be doing the second today. Susan xxxEND_PAGE:dhhs03_b0317_1166_1166_1