Hazard Identification: Important Outbreaks

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Outbreaks by State




























Year
State
Etiologic Agent
Cases
Attack Rate (Ill/Exposed)
Hospitalized Individuals
Water Body
1978 Vermont Schistosoma spp 30 Lake
1979 Maine 30 Lake
1979 Michigan 239 Lake
1980 Louisiana Shigella spp 133 Lake
1980 Illinois Shigella spp 15 Lake
1980 Kansas Shigella spp 60 Lake
1980 Maryland 53 Lake
1980 New York Shigella spp 127 Lake
1981 Hawaii Microcoleus lyngbyaceus 14 Ocean
1981 New York Leptospira 6 River
1982 Alaska Schistosoma spp 7 Lake
1983 Illinois 32 Lake
1983 Illinois Shigella 6 Lake
1983 Wisconsin Enterovirus 40 0 Lake
1983 California Shigella sonnei 40 0.00 Lake, Other
1983 Minnesota Norovirus 38 Unknown
1983 Minnesota Norovirus 38 Unknown
1984 Ohio Shigella sonnei 29 0.47 Lake
1984 Alaska Schistosoma 30 Lake
1984 New York 50 Lake
1985 California Shigella sonnei, Shigella boydii 68 15 Lake
1986 California Norovirus 41 0 Lake
1987 South Carolina Shigella sonnei 130 Lake
1987 Wisconsin 160 0.40 0 Lake
1987 Maryland Other 4 0.25 4 River
1987 Hawaii Leptospira spp 8 0.50 River
1988 Minnesota 24 0 Lake
1988 Illinois Shigella sonnei 61 0.06 6 Lake
1988 Georgia Shigella sonnei 22 0.01 5 Lake
1988 Vermont 36 0.06 1 Lake
1988 Vermont 300 0.50 1 Lake
1988 Pennsylvania Shigella sonnei 138 0.03 14 Lake
1989 New Jersey 17 0.49 Lake
1989 Michigan Shigella sonnei 65 4 Lake
1989 Maine 22 Lake
1989 New Jersey 26 0.54 0 Lake
1990 Wisconsin 79 0.08 0 Lake
1990 Wyoming 4 0 Lake
1990 North Carolina Shigella sonnei 68 Lake
1990 Washington 244 0.56 0 Lake
1990 New York Shigella sonnei 7 4 Lake
1990 Oregon Shigella sonnei 9 0 Lake
1990 Minnesota 18 0.23 0 Lake
1990 Pennsylvania 60 0.05 Lake
1991 Utah Schistosoma spp 5 0 Lake
1991 Pennsylvania Shigella sonnei 203 0.00 0 Lake
1991 North Carolina Adenovirus 595 Lake
1991 Wyoming Schistosoma spp 5 0.25 0 Lake
1991 Washington Giardia intestinalis 4 1.00 0 Lake
1991 Illinois Leptospira spp 6 4 Lake
1991 Oregon Escherichia coli, Shigella sonnei 80 0.08 7 Lake
1991 Rhode Island Shigella sonnei 23 0.05 0 Lake
1991 Delaware Schistosoma spp 30 0.81 Ocean
1992 New Jersey Shigella sonnei 54 0 Lake
1992 Virginia Shigella sonnei 9 1 Lake
1992 New Jersey Schistosoma spp 40 0 Lake
1992 Maryland 15 0.60 0 River
1993 Maryland Giardia intestinalis 12 0.00 0 Lake
1993 Ohio Shigella sonnei 160 0.16 Lake
1993 New Jersey Giardia intestinalis 48 1 Lake
1993 Washington Giardia intestinalis 6 River
1994 Minnesota Shigella flexneri 35 2 Lake
1994 New Jersey Shigella sonnei 300 0.02 0 Lake
1994 New Jersey Shigella sonnei 265 2 Lake
1994 New Jersey Cryptosporidium parvum 418 0.72 5 Lake
1994 Florida 12 0.34 2 Lake
1994 New York Escherichia coli 166 0.33 Lake
1995 Wisconsin Escherichia coli, Giardia intestinalis, Plesiomonas spp 8 5 Lake
1995 Illinois Escherichia coli 12 0.00 4 Lake
1995 Minnesota 12 Lake
1995 Minnesota Escherichia coli 6 2 Lake
1995 Minnesota Escherichia coli 2 2 Lake
1995 Pennsylvania Shigella sonnei 70 0.01 5 Lake
1995 Pennsylvania 17 0.28 0 Lake
1996 Oregon Schistosoma spp 71 1.00 0 Lake
1996 Minnesota Escherichia coli 6 3 Lake
1996 Oregon Schistosoma spp 50 1.00 Lake
1996 Colorado Shigella sonnei 81 1 Lake
1996 Colorado Shigella sonnei 39 Lake
1996 Indiana Cryptosporidium parvum, Giardia intestinalis 3 1.00 Lake
1996 Indiana 4 1.00 0 Lake
1996 Oregon 32 Lake
1996 Idaho Norovirus 55 0.54 0 Spring
1997 Tennessee Cryptosporidium 28 0.28 0 Lake
1997 Oregon Schistosoma spp 2 0 Lake
1997 Missouri Escherichia coli 8 0.00 0 Lake
1998 Wisconsin Norovirus 18 Lake
1998 Illinois Leptospira spp 375 0.44 28 Lake
1998 Washington 248 0.41 0 Lake
1998 Ohio Norovirus 30 0 Lake
1998 Pennsylvania Cryptosporidium parvum 8 0.73 2 Lake
1998 Minnesota Norovirus 15 0.15 0 Lake
1998 Minnesota Escherichia coli 5 1 Lake
1998 Washington 58 0.37 0 Lake
1998 Maine 650 0.27 0 Lake
1999 New York Norovirus 168 Lake
1999 New York 140 Lake
1999 Illinois 25 0.10 0 Lake
1999 Massachusetts Giardia intestinalis 18 0 Lake
1999 Connecticut Escherichia coli 11 0.03 2 Lake
1999 Oregon Schistosoma spp 2 0 Lake
1999 Washington Escherichia coli 36 7 Lake
1999 Wisconsin Escherichia coli 5 0.45 0 Lake
1999 Idaho Norovirus 25 Spring
1999 Florida Escherichia coli 2 1.00 0 Other
2000 Florida 2 0 Lake
2000 California Schistosoma 2 0.02 0 Lake
2000 Minnesota Cryptosporidium parvum, Giardia intestinalis 220 0.15 0 Lake
2000 California Schistosoma 1 1.00 0 Lake
2000 Maine 32 0.47 0 Lake
2000 Minnesota Cryptosporidium parvum, Shigella sonnei 15 Lake
2000 Guam Leptospira interrogans 21 0.20 0 Lake
2000 Minnesota Shigella sonnei 25 0 Lake
2000 Florida 4 0.67 Spring
2001 Minnesota Escherichia coli, Campylobacter jejuni 20 5 Lake
2001 Minnesota Norovirus 67 0.34 0 Lake
2001 South Carolina Escherichia coli 45 0.30 4 Lake
2001 New Hampshire 42 0.62 0 Lake
2001 Minnesota Escherichia coli 4 0 Lake
2001 Wyoming Cryptosporidium spp 2 1 Spring
2002 Wyoming Cryptosporidium spp 3 0 Lake
2002 Minnesota Norovirus 11 0.85 0 Lake
2002 Florida 7 1.00 0 Lake
2002 Oregon Schistosoma spp 19 0 Lake, River
2002 New York Shigella sonnei 20 0.00 2 Lake
2002 Wisconsin Cryptosporidium spp, Norovirus, Shigella sonnei 44 1 Lake
2002 Wyoming Giardia intestinalis 2 0 River
2002 Maine 33 0.42 0 Other
2003 Florida Norovirus 20 0.59 0 Lake
2003 Georgia Shigella sonnei 13 0.05 0 Lake
2003 California 9 0 Lake
2003 Ohio 6 0 Lake
2003 Idaho Cryptosporidium spp 4 0 Lake
2003 Wyoming Plesiomonas shigelloides 2 0 Lake
2003 Maryland Shigella sonnei 65 0.86 0 Lake
2003 Ohio Plesiomonas shigelloides 3 1.00 1 Lake
2003 Florida Norovirus 10 0.40 0 Lake
2004 Missouri Giardia spp 9 0.39 1 Lake
2004 Minnesota Norovirus 9 0.35 0 Lake
2004 Arkansas Shigella flexneri 10 0.08 4 Lake
2004 Nebraska Other 20 0 Lake
2004 Nebraska Other 2 0 Lake
2004 Oregon Norovirus 39 0.39 0 Lake
2004 Wisconsin 18 0 Lake
2004 Georgia 9 1.00 0 Lake
2004 Guam Leptospira spp 3 0.43 2 River
2004 Hawaii Leptospira interrogans 2 1.00 1 River
2005 Michigan Copper 3 1 Lake
2005 Minnesota Escherichia coli 4 2 Lake
2005 Maine 10 0.50 5 Lake
2005 California Schistosoma 2 1.00 0 Lake
2005 Pennsylvania Shigella sonnei 15 0.00 3 Lake
2005 Minnesota Shigella sonnei 12 0 Lake
2005 New York Cryptosporidium 27 0.27 3 Lake
2005 Massachusetts Shigella sonnei 5 Lake
2005 Minnesota Norovirus 8 0 Lake
2005 New York 13 Lake
2005 Florida 24 0.29 Ocean
2005 California Leptospira 3 1.00 River
2005 Oklahoma Naegleria fowleri 2 2 Unknown
2005 Florida Leptospira 43 0.22 3 River
2006 Florida Norovirus 50 0.17 Lake
2006 Minnesota Norovirus 10 0.30 0 Lake
2006 Wisconsin Escherichia coli 3 2 Lake
2006 Tennessee Escherichia coli 3 2 Lake
2006 Ohio 2 1.00 0 Lake
2006 Massachusetts Cryptosporidium 6 1 Lake
2007 Colorado Shigella 2 Lake
2007 Colorado Schistosoma 57 Lake
2007 New Mexico Schistosoma 12 Lake
2007 North Dakota Cryptosporidium 10 Lake
2007 Colorado Schistosoma 200 Lake
2007 Washington Cryptosporidium 7 Lake
2007 California Plesiomonas shigelloides 2 River, Spring
2007 Florida Karenia brevis 15 Ocean
2007 Florida 2 Ocean
2007 Tennessee 14 River
2008 Connecticut Norovirus 16 Lake
2008 Illinois Escherichia coli 3 Lake
2008 Minnesota Norovirus 26 Lake
2008 Ohio Shigella sonnei, Norovirus, Yersinia enterolytica 54 Lake
2008 Vermont 10 Lake
2008 Wisconsin Norovirus 23 Lake
2008 Florida Shigella 2 Spring
2008 California Schistosoma 31 Ocean

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Outbreaks by State

Year
State
Etiologic Agent
Cases
1971 Alabama Chemical 3
1973 Alabama Hepatitis 50
1973 Florida Salmonella 210
1973 New Jersey Unknown 2
1973 Maryland Salmonella 2
1973 Arizona Shigella 2
1973 New Jersey Unknown 22
1973 Pennsylvania Unknown 38
1973 Pennsylvania Unknown 71
1973 Colorado Giardia 16
1973 Ohio Hepatitis 35
1973 Alaska Shigella 50
1973 Arkansas Unknown 225
1973 Oregon Unknown 29
1973 Tennessee Giardia 5
1973 Pennsylvania Shigella 181
1973 Arkansas Unknown 42
1973 Connecticut Unknown 74
1973 New Jersey Unknown 46
1973 Pennsylvania Unknown 24
1973 Pennsylvania Unknown 153
1973 Florida Unknown 194
1973 Colorado Giardia 12
1973 Vermont Giardia 20
1973 Maryland Shigella 94
1973 Pennsylvania Unknown 145
1974 Florida Shigella 1200
1974 New Jersey Unknown 57
1974 Oregon Chemical 18
1974 Idaho Unknown 9
1974 North Carolina Chemical 213
1974 Colorado Giardia 18
1974 New Hampshire Giardia 78
1974 Washington Salmonella 5
1974 Pennsylvania Unknown 12
1974 Wisconsin Chemical 17
1974 Alaska Salmonella 34
1974 Ohio Shigella 6
1974 Pennsylvania Unknown 72
1974 Pennsylvania Shigella 600
1974 Colorado Unknown 85
1974 New Hampshire Unknown 7
1974 Oregon Unknown 19
1974 Oregon Unknown 400
1974 New York Chemical 20
1974 Utah Giardia 34
1974 Illinois Pesticide 1
1974 California Unknown 18
1974 Pennsylvania Unknown 18
1974 New York Giardia 4800
1974 Vermont Giardia 32
1974 Montana Unknown 615
1975 New Jersey Unknown 390
1975 Massachusetts Hepatitis 17
1975 Unknown 550
1975 Indiana Unknown 1400
1975 New Jersey Unknown 350
1975 Louisiana Chemical 26
1975 California Unknown 80
1975 Oregon E. coli 1000
1975 New Jersey Pesticide 4
1975 Arkansas Unknown 500
1975 California Unknown 900
1975 Minnesota Unknown 136
1975 Ohio Unknown 140
1975 California Unknown 19
1975 Pennsylvania Unknown 88
1975 Tennessee Unknown 40
1975 Montana Shigella 56
1975 Arkansas Unknown 23
1975 Pennsylvania Unknown 37
1975 Pennsylvania Unknown 5000
1975 Idaho Giardia 9
1975 Oregon Unknown 7
1975 South Carolina Chemical 7
1975 Pennsylvania Unknown 100
1976 Colorado Giardia 12
1976 Vermont Unknown 150
1976 Tennessee Pesticide 13
1976 New York Salmonella 750
1976 Pennsylvania Chemical 2
1976 Oklahoma Unknown 65
1976 Pennsylvania Unknown 4
1976 Pennsylvania Unknown 30
1976 Washington Giardia 600
1976 California Unknown 60
1976 California Unknown 46
1976 Colorado Unknown 10
1976 Pennsylvania Unknown 35
1976 Colorado Giardia 27
1976 Connecticut Unknown 300
1976 Idaho Unknown 100
1976 Pennsylvania Unknown 10
1976 Pennsylvania Unknown 26
1976 Pennsylvania Unknown 34
1976 Pennsylvania Unknown 5
1976 Arkansas Salmonella 7
1976 Shigella 2150
1976 Arkansas Unknown 51
1976 California Unknown 2
1976 Massachusetts Unknown 18
1976 Pennsylvania Unknown 10
1976 Pennsylvania Unknown 150
1976 Pennsylvania Unknown 18
1976 Alaska Shigella 25
1976 Pennsylvania Unknown 10
1976 Mississippi Chemical 20
1976 New Jersey Unknown 104
1976 Pennsylvania Unknown 24
1976 Florida Unknown 31
1976 Pennsylvania Unknown 66
1976 Colorado Unknown 110
1977 Pennsylvania Chemical 10
1977 Pennsylvania Shigella 17
1977 Pennsylvania Unknown 73
1977 Vermont Copper 74
1977 New Hampshire Giardia 750
1977 New Jersey Unknown 10
1977 Illinois Unknown 154
1977 Pennsylvania Unknown 500
1977 Pennsylvania Unknown 30
1977 Texas Unknown 12
1977 Utah Giardia 7
1977 Minnesota Unknown 13
1977 California Chemical 531
1977 Montana Giardia 55
1977 Montana Giardia 200
1977 South Carolina Hepatitis 47
1977 Iowa Salmonella 206
1977 California Unknown 63
1977 California Unknown 203
1977 Maine Unknown 91
1977 Pennsylvania Unknown 47
1977 Pennsylvania Unknown 15
1977 Washington Unknown 12
1977 Wyoming Unknown 402
1977 California Unknown 75
1977 North Dakota Unknown 25
1977 Pennsylvania Unknown 150
1977 California Unknown 12
1977 Connecticut Copper 3
1977 Pennsylvania Unknown 45
1977 Michigan Chemical 4
1977 Pennsylvania Copper 11
1977 California Unknown 6
1978 Pennsylvania Unknown 91
1978 Colorado Giardia 5000
1978 Pennsylvania Unknown 50
1978 Vermont Campylobacter 3000
1978 New York Shigella 23
1978 Oregon Shigella 34
1978 Missouri Unknown 750
1978 Pennsylvania Virus 350
1978 Washington Virus 467
1978 Pennsylvania Shigella 99
1978 Colorado Unknown 350
1978 Nebraska Unknown 23
1978 Tennessee Unknown 5
1978 Utah Giardia 18
1978 Hawaii Salmonella 11
1978 Maryland Shigella 22
1978 New York Unknown 55
1978 Oregon Unknown 174
1978 Pennsylvania Virus 120
1978 Washington Giardia 23
1978 Maine Unknown 70
1978 Pennsylvania Unknown 63
1978 South Carolina Salmonella 78
1978 New York Unknown 11
1978 New York Unknown 3
1978 Minnesota Unknown 137
1978 New York Unknown 5
1978 New Mexico Chemical 34
1978 Connecticut Copper 12
1978 New York Giardia 130
1978 Idaho Unknown 27
1978 Pennsylvania Unknown 200
1979 Virginia Chemical 8
1979 California Giardia 120
1979 Colorado Unknown 200
1979 Massachusetts Unknown 500
1979 North Carolina Unknown 35
1979 Pennsylvania Unknown 12
1979 New Hampshire Giardia 50
1979 Iowa Unknown 100
1979 Maine Chemical 6
1979 Minnesota Chemical 2
1979 Arizona Giardia 2000
1979 Colorado Giardia 53
1979 Minnesota Salmonella 61
1979 Maine Unknown 70
1979 South Dakota Chemical 16
1979 Pennsylvania Norwalk Virus 151
1979 Wisconsin Shigella 4
1979 Colorado Unknown 258
1979 Minnesota Unknown 9
1979 Oregon Unknown 300
1979 Pennsylvania Unknown 165
1979 Vermont Unknown 17
1979 Washington Unknown 49
1979 New Mexico Chemical 2
1979 Arizona Unknown 6
1979 New Hampshire Unknown 38
1979 Pennsylvania Unknown 43
1979 Pennsylvania Giardia 3500
1979 Arizona Shigella 14
1979 Arizona Unknown 4
1979 Michigan Unknown 12
1979 Pennsylvania Unknown 35
1979 Oregon Giardia 21
1979 North Carolina Norwalk Virus 145
1979 Virginia Pesticide 10
1979 Oregon Unknown 1200
1979 Pennsylvania Unknown 135
1979 Maryland Chemical 26
1979 Minnesota Chemical 1
1979 Oregon Giardia 120
1979 Oregon Unknown 120
1979 South Carolina Unknown 104
1980 Washington Giardia 79
1980 California Norwalk Virus 190
1980 Pennsylvania Unknown 3
1980 Pennsylvania Giardia 15
1980 Washington Giardia 578
1980 Colorado Unknown 22
1980 Illinois Unknown 30
1980 Pennsylvania Unknown 12
1980 California Unknown 41
1980 New Mexico Chemical 1
1980 Montana Giardia 780
1980 Oregon Giardia 63
1980 Texas Hepatitis 8000.00
1980 Colorado Unknown 18
1980 Minnesota Unknown 30
1980 Utah Unknown 105
1980 Vermont Unknown 990
1980 Wisconsin Hepatitis 12
1980 Maryland Norwalk Virus 127
1980 Pennsylvania Norwalk Virus 55
1980 Arizona Unknown 40
1980 Colorado Unknown 5
1980 Michigan Unknown 6
1980 New Mexico Unknown 24
1980 Ohio Unknown 28
1980 Pennsylvania Unknown 90
1980 South Carolina Unknown 106
1980 Texas Unknown 2550
1980 Washington Unknown 23
1980 Georgia Norwalk Virus 1500
1980 New York Norwalk Virus 42
1980 Indiana Shigella 4
1980 Colorado Unknown 38
1980 Colorado Unknown 34
1980 Ohio Unknown 25
1980 Ohio Unknown 738
1980 Pennsylvania Unknown 139
1980 Tennessee Unknown 5
1980 Connecticut Campylobacter 800
1980 Rhode Island Chemical 20
1980 Vermont Chemical 200
1980 Alaska Giardia 189
1980 Washington Giardia 20
1980 Michigan Unknown 60
1980 Washington Unknown 46
1980 Pennsylvania Hepatitis 48
1980 Pennsylvania Pesticide 20
1980 Georgia Chemical 56
1980 Pennsylvania Copper 1
1980 Pennsylvania Pesticide 2000
1981 Pennsylvania Chemical 3
1981 Oregon Unknown 40
1981 South Dakota Chemical 1
1981 Colorado Virus 1761
1981 California Unknown 61
1981 Pennsylvania Unknown 9
1981 Pennsylvania Unknown 35
1981 Pennsylvania Unknown 51
1981 Colorado Giardia 8
1981 Arizona Unknown 326
1981 Iowa Unknown 14
1981 Colorado Giardia 30
1981 Washington Shigella 253
1981 Pennsylvania Unknown 97
1981 Pennsylvania Unknown 30
1981 Texas Bacteria 17
1981 Colorado Giardia 110
1981 Colorado Unknown 578
1981 Connecticut Unknown 80
1981 Kansas Unknown 100
1981 Maryland Unknown 72
1981 New York Unknown 400
1981 Illinois Campylobacter 81
1981 Colorado Giardia 32
1981 Wisconsin Giardia 25
1981 Maine Chemical 31
1981 Vermont Giardia 22
1981 Pennsylvania Chemical 84
1981 Pennsylvania Copper 9
1981 Colorado Giardia 38
1981 Colorado Giardia 14
1981 Colorado Giardia 18
1982 Alaska Copper 2
1982 Colorado Giardia 10
1982 Georgia Norwalk Virus 500
1982 Pennsylvania Bacteria 16
1982 Colorado Giardia 17
1982 Vermont Unknown 22
1982 Colorado Giardia 4
1982 Colorado Giardia 8
1982 Virginia Giardia 4
1982 California Norwalk Virus 25
1982 California Norwalk Virus 170
1982 Pennsylvania Unknown 16
1982 Alabama Norwalk Virus 55
1982 Arizona Unknown 24
1982 Indiana Unknown 400
1982 New York Unknown 16
1982 Georgia Hepatitis 10
1982 Pennsylvania Unknown 48
1982 Unknown 500
1982 Colorado Giardia 72
1982 Georgia Hepatitis 35
1982 West Virginia Shigella 19
1982 Pennsylvania Unknown 71
1982 Pennsylvania Unknown 31
1982 Vermont Unknown 105
1982 Vermont Unknown 340
1982 Colorado Giardia 28
1982 Nevada Giardia 342
1982 Colorado Unknown 36
1982 Maine Unknown 25
1982 Alabama Chemical 16
1982 Colorado Giardia 32
1982 Oregon Giardia 9
1982 North Carolina Shigella 153
1982 Texas Unknown 65
1982 New Hampshire Giardia 13
1982 Vermont Giardia 22
1982 Maine Unknown 50
1982 Kentucky Hepatitis 58
1982 Alaska Unknown 35
1983 Vermont Copper 3
1983 Colorado Giardia 4
1983 Colorado Giardia 11
1983 Colorado Giardia 17
1983 Utah Giardia 41
1983 Oklahoma Salmonella 400
1983 Florida Giardia 3
1983 Colorado Unknown 16
1983 Florida Campylobacter 871
1983 Colorado Giardia 10
1983 New Hampshire Giardia 7
1983 Colorado Giardia 11
1983 Virginia Giardia 4
1983 Tennessee Hepatitis 8
1983 Colorado Unknown 8
1983 Florida Unknown 52
1983 New Mexico Unknown 113
1983 Pennsylvania Unknown 11400
1983 West Virginia Unknown 30
1983 Montana Giardia 100
1983 Washington Salmonella 750
1983 Wisconsin Shigella 12
1983 Colorado Unknown 27
1983 Utah Giardia 1272
1983 Iowa Unknown 92
1983 Pennsylvania Unknown 25
1983 Pennsylvania Unknown 200
1983 Texas Unknown 3400
1983 Utah Unknown 12
1983 West Virginia Unknown 1000
1983 Kentucky Hepatitis 150
1983 Pennsylvania Unknown 11
1983 Washington Unknown 79
1983 Colorado Giardia 11
1983 Pennsylvania Giardia 366
1983 Pennsylvania Giardia 135
1983 Pennsylvania Unknown 146
1983 Idaho Giardia 44
1983 Idaho Giardia 71
1983 California Hepatitis 6
1984 New York Unknown 24
1984 North Carolina Copper 1
1984 Pennsylvania Giardia 298
1984 Idaho Campylobacter 6
1984 Minnesota Campylobacter 9
1984 Virginia Chemical 28
1984 Colorado Giardia 400
1984 Wisconsin Unknown 89
1984 New York Copper 15
1984 Texas Norwalk Virus 251
1984 Pennsylvania Unknown 8
1984 New York Campylobacter 4
1984 Oregon Campylobacter 22
1984 Missouri Parasite 4
1984 Missouri Unknown 2
1984 Texas Cryptosporidium 117
1984 Oregon Giardia 42
1984 Colorado Unknown 50
1984 Oregon Unknown 20
1984 Pennsylvania Unknown 98
1984 Alaska Giardia 3
1984 Massachusetts Hepatitis 7
1984 New York Unknown 34
1984 Pennsylvania Unknown 34
1984 Alaska Giardia 123
1984 Missouri Unknown 107
1984 Pennsylvania Unknown 18
1984 California Copper 1
1984 Colorado Giardia 13
1985 New York Giardia 6
1985 Arkansas Campylobacter 24
1985 New York Chemical 1
1985 Arkansas Campylobacter 19
1985 Wyoming Chemical 31
1985 Virginia Giardia 32
1985 Pennsylvania Unknown 70
1985 Salmonella 60
1985 New York Unknown 4
1985 Illinois Unknown 18
1985 Unknown 18
1985 Pennsylvania Shigella 27
1985 New York Unknown 19
1985 Unknown 274
1985 Vermont Unknown 21
1985 Wisconsin Campylobacter 150
1985 Oklahoma Unknown 59
1985 Pennsylvania Unknown 275
1985 Massachusetts Giardia 703
1985 Pennsylvania Unknown 11
1985 Vermont Unknown 105
1985 Vermont Unknown 19
1986 Vermont Giardia 68
1986 Vermont Unknown 37
1986 Connecticut Chemical 52
1986 Vermont Unknown 8
1986 California Giardia 127
1986 Oklahoma Campylobacter 250
1986 South Dakota Chemical 1
1986 Utah Salmonella 61
1986 Colorado Unknown 90
1986 New Mexico Unknown 36
1986 New Mexico Unknown 233
1986 Alabama Shigella 25
1986 Texas Shigella 8
1986 Virginia Unknown 110
1986 Wyoming Unknown 16
1986 Colorado Giardia 23
1986 South Dakota Norwalk Virus 135
1986 Mississippi Salmonella 9
1986 Pennsylvania Unknown 213
1986 Alabama Chemical 11
1986 Maine Giardia 12
1986 New York Giardia 44
1987 Georgia Cryptosporidium 13000
1987 Wisconsin Unknown 39
1987 North Dakota Chemical 29
1987 Pennsylvania Giardia 513
1987 Connecticut Giardia 120
1987 Illinois Unknown 72
1987 New Hampshire Unknown 71
1987 Pennsylvania Unknown 53
1987 Unknown 1400
1987 Vermont Unknown 21
1987 Pennsylvania Unknown 22
1987 Norwalk Virus 5000
1987 Maine Unknown 9
1987 Pennsylvania Unknown 0
1987 Shigella 1800
1988 Colorado Giardia 90
1988 Missouri Unknown 85
1988 Colorado Chemical 10
1988 Texas Shigella 900
1988 Wisconsin Unknown 340
1988 Idaho Norwalk Virus 339
1988 Pennsylvania Giardia 172
1988 Illinois Shigella 11
1988 Colorado Unknown 80
1988 South Dakota Unknown 42
1988 Missouri Unknown 30
1988 Hepatitis 9
1988 Pennsylvania Unknown 26
1988 Tennessee Unknown 89
1988 Colorado Unknown 7
1988 Maine Unknown 7
1988 Unknown 22
1989 Colorado Giardia 19
1989 New York Giardia 308
1989 Arizona Norwalk Virus 900
1989 Pennsylvania Shigella 130
1989 Maine Unknown 54
1989 New York Giardia 152
1989 Vermont Unknown 22
1989 New York Giardia 53
1989 New Jersey Unknown 8
1989 Pennsylvania Unknown 50
1989 Idaho Unknown 31
1989 Alabama Unknown 700
1989 Missouri E. coli 243
1990 California Unknown 12
1990 Minnesota Unknown 76
1990 Alaska Giardia 18
1990 Vermont Giardia 24
1990 Pennsylvania Hepatitis 22
1990 Missouri Unknown 109
1990 Tennessee Unknown 1000
1990 Illinois Bacteria 21
1990 Unknown 75
1990 Missouri Unknown 52
1990 Colorado Giardia 123
1990 Minnesota Unknown 150
1990 Pennsylvania Hepatitis 3
1990 Pennsylvania Unknown 63
1991 Illinois Unknown 386
1991 Michigan Unknown 1320
1991 Minnesota Unknown 30
1991 Pennsylvania Unknown 170
1991 Pennsylvania Unknown 300
1991 California Giardia 15
1991 Minnesota Unknown 30
1991 Pennsylvania Unknown 8
1991 Pennsylvania Cryptosporidium 551
1991 Michigan Unknown 33
1991 Minnesota Unknown 17
1991 New Mexico Unknown 38
1991 Unknown 202
1991 Unknown 9847
1991 Pennsylvania Giardia 13
1992 Wisconsin Copper 24
1992 Missouri Shigella 5
1992 North Carolina Unknown 200
1992 Oregon Cryptosporidium 0
1992 Minnesota Unknown 250
1992 Idaho Giardia 15
1992 Nevada Giardia 80
1992 Pennsylvania Unknown 5
1992 Missouri Hepatitis 46
1992 New York Unknown 107
1992 Alaska Chemical 262
1992 Oregon Cryptosporidium 0
1992 Minnesota Unknown 70
1992 Pennsylvania Unknown 28
1992 Pennsylvania Unknown 50
1992 Pennsylvania Unknown 57
1992 Pennsylvania Unknown 50
1992 Wisconsin Chemical 1
1992 Washington Hepatitis 10
1992 Ohio Unknown 129
1992 Pennsylvania Unknown 38
1992 Pennsylvania Unknown 42
1992 Missouri Shigella 11
1992 Shigella 150
1992 Pennsylvania Unknown 80
1992 Wisconsin Copper 8
1992 Wisconsin Copper 6
1993 Indiana Chemical 3
1993 Pennsylvania Giardia 20
1993 Pennsylvania Copper 43
1993 Wisconsin Cryptosporidium 403000
1993 Pennsylvania Unknown 65
1993 Washington Cryptosporidium 7
1993 New York Campylobacter 172
1993 Arizona Chemical 1
1993 Arizona Chemical 1
1993 Mississippi Chemical 34
1993 Minnesota Cryptosporidium 27
1993 South Dakota Giardia 7
1993 South Dakota Unknown 40
1993 Hawaii Chemical 9
1993 California Chemical 1
1993 Minnesota Cryptosporidium 32
1993 Missouri Salmonella 625
1993 Nevada Cryptosporidium 103
1994 Indiana Chemical 1
1994 Tennessee Giardia 304
1994 Indiana Unknown 118
1994 New Hampshire Giardia 18
1994 New Hampshire Giardia 36
1994 Bacteria 11
1994 Minnesota Campylobacter 19
1994 Florida E. coli 2
1994 Idaho Shigella 33
1994 New York Shigella 230
1994 Washington Cryptosporidium 134
1994 Maine Unknown 72
1994 Pennsylvania Unknown 200
1995 Florida Chemical 1
1995 Florida Chemical 30
1995 South Dakota Unknown 48
1995 Minnesota E. coli 33
1995 Washington Giardia 87
1995 Alaska Giardia 10
1995 Idaho Shigella 83
1995 Montana Unknown 450
1995 New York Unknown 30
1995 Pennsylvania Unknown 19
1995 Wisconsin Unknown 26
1995 Wisconsin Copper 22
1995 Tennessee Hepatitis 8
1995 Idaho Unknown 18
1995 Wisconsin Unknown 148
1995 Iowa Chemical 13
1995 Wisconsin Copper 15
1995 Oklahoma Shigella 10
1995 New York Giardia 1449
1996 New Jersey Chemical 6
1996 California Chemical 3
1996 New York Shigella 60
1996 Wisconsin Unknown 21
1996 Idaho Unknown 94
1996 New York Unknown 58
1996 California Unknown 8
1996 Florida Norwalk Virus 594
1997 Florida Copper 2
1997 South Dakota Unknown 16
1997 New York Giardia 50
1997 Oregon Giardia 100
1997 Colorado Unknown 9
1997 New Mexico Unknown 123
1997 Washington E. coli 4
1997 California Chemical 7
1997 New York Norwalk Virus 1450
1998 Illinois E. coli 3
1998 Florida Giardia 7
1998 Wyoming E. coli 157
1998 New Mexico Cryptosporidium 32
1998 Texas Cryptosporidium 1400
1998 Montana Unknown 5
1998 Minnesota Shigella 83
1998 Florida Copper 35
1998 Ohio Unknown 10
1998 Florida Giardia 2
1999 Florida Giardia 2
1999 Florida Unknown 4
1999 Florida Unknown 6
1999 Florida Unknown 3
1999 Wisconsin Chemical 1
1999 Florida Unknown 3
1999 Missouri Salmonella 124
1999 California Unknown 31
1999 New Mexico Unknown 70
1999 Washington Unknown 46
1999 New York E. coli 781
1999 Florida Unknown 4
1999 Washington Unknown 68
1999 New Jersey Chemical 2
1999 Texas E. coli 22
2000 Florida Unknown 19
2000 Idaho E. coli 4
2000 Salmonella 84
2000 Florida Unknown 21
2000 Florida Unknown 71
2000 Idaho Campylobacter 15
2000 Minnesota Giardia 12
2000 Kansas Norwalk Virus 86
2000 Kansas Norwalk Virus 86
2000 West Virginia Norwalk Virus 123
2000 Florida Unknown 2
2000 California E. coli 5
2000 New Mexico Giardia 4
2000 California Norwalk Virus 147
2000 Florida Unknown 3
2000 Florida Unknown 3
2000 Idaho Unknown 65
2000 Utah Campylobacter 102
2000 Ohio E. coli 29
2000 Colorado Giardia 27
2000 Florida Unknown 4
2000 Florida Giardia 2
2000 New Hampshire Giardia 5
2000 California Unknown 63
2000 Bacteria 103
2000 Florida Cryptosporidium 5
2000 Florida Cryptosporidium 5
2001 Wisconsin Campylobacter 13
2001 Wyoming Norovirus 230
2001 Colorado Giardia 6
2001 Minnesota Legionella 2
2001 Nevada Legionella 20
2001 Florida Giardia 6
2001 Florida Unknown 3
2001 Florida Unknown 4
2001 Alaska Campylobacter 12
2001 Pennsylvania Unknown 19
2001 Florida Unknown 4
2001 Florida Chemical 3
2001 Indiana Cryptosporidium 10
2001 Florida Chemical 2
2001 Minnesota Chemical 4
2001 Ohio Copper 2
2001 Wyoming Norovirus 83
2001 Illinois Unknown 79
2001 Minnesota Chemical 28
2002 New York Giardia 6
2002 Parasite 59
2002 Massachusetts Legionella 16
2002 Pennsylvania Legionella 12
2002 Connecticut Norovirus 142
2002 New York E. coli 6
2002 Vermont Legionella 28
2002 Arizona Norovirus 71
2002 New Hampshire Norovirus 201
2002 Kentucky E. coli 2
2002 Florida Unknown 5
2002 Florida Unknown 3
2002 Maryland Legionella 2
2002 Arizona Naegleria 2
2002 Maryland Legionella 3
2002 Legionella 3
2002 New York Campylobacter 27
2003 Florida Unknown 419
2003 New York Chemical 4
2003 Washington Campylobacter 110
2003 Minnesota Copper 4
2003 Illinois Unknown 180
2003 Utah Unknown 25
2003 Michigan Unknown 4
2003 Maryland Legionella 7
2003 Ohio Campylobacter 57
2003 Florida Chemical 2
2003 Minnesota Copper 5
2003 Maine Chemical 2
2004 New York Legionella 2
2004 Ohio Multiple 82
2004 Pennsylvania Norovirus 70
2004 New Jersey Chemical 2
2004 Pennsylvania Legionella 3
2004 New York Legionella 2
2004 Vermont Giardia 11
2004 New Jersey Legionella 2
2004 Pennsylvania Unknown 174
2004 South Carolina Copper 7
2004 New Jersey Legionella 2
2004 Ohio Multiple 1450
2004 Virginia Campylobacter 34
2004 Montana Salmonella 70
2004 Texas Legionella 3
2004 Florida Chemical 1
2004 Wisconsin Campylobacter 20
2004 Maryland Legionella 6
2005 Oregon Multiple 60
2005 California Giardia 41
2005 Ohio Unknown 59
2005 Florida Legionella 2
2005 Pennsylvania Legionella 4
2005 New York Legionella 4
2005 New York Legionella 2
2005 New York Legionella 8
2006 New York Legionella 2
2006 Indiana Campylobacter 32
2006 Pennsylvania Legionella 4
2006 Texas Legionella 10
2006 New York Legionella 4
2006 Wyoming Multiple 139
2006 North Carolina Hepatitis 16
2006 Maryland Norovirus 148
2006 Ohio Legionella 3
2006 New York Unknown 16
2006 Ohio Cryptosporidium 10
2006 Oregon Norovirus 48

References

Data provided by Environmental Protection Agency MMRW Summaries