- Food Item Attack Rate Ratio Tii A Number Who Ate Food Not Iii Total Attack Rate B A B C Iii D Number Who Did Not Eat Foo 1 (42.83 KiB) Viewed 20 times
- Food Item Attack Rate Ratio Tii A Number Who Ate Food Not Iii Total Attack Rate B A B C Iii D Number Who Did Not Eat Foo 2 (81.63 KiB) Viewed 20 times
- Food Item Attack Rate Ratio Tii A Number Who Ate Food Not Iii Total Attack Rate B A B C Iii D Number Who Did Not Eat Foo 3 (77.87 KiB) Viewed 20 times
- Food Item Attack Rate Ratio Tii A Number Who Ate Food Not Iii Total Attack Rate B A B C Iii D Number Who Did Not Eat Foo 4 (69.01 KiB) Viewed 20 times
- Food Item Attack Rate Ratio Tii A Number Who Ate Food Not Iii Total Attack Rate B A B C Iii D Number Who Did Not Eat Foo 5 (66.16 KiB) Viewed 20 times
- Food Item Attack Rate Ratio Tii A Number Who Ate Food Not Iii Total Attack Rate B A B C Iii D Number Who Did Not Eat Foo 6 (27.83 KiB) Viewed 20 times
Baked ham z Spinach z Mashed potatoes z Cabbage salad z Brown bread Choc ice cream Vello Z Man ice cream z Rolls z Coffee Milk Water Cakes z Fruit salad DATE OF ONSET 4/19 4/19 4/19 TIME OF ONSET 12:30 AM 12:30 AM 12:30 AM ID AGE SEX 1 11 M 2 52 F 3 65 M 4 59 5 13 6 63 F 7 70 M 8 40 F 9 15 10 33 F TIME OF MEAL unk 8:00 PM 6:30 PM 6:30 PM unk 7:30 PM 7:30 PM 7:30 PM 10:00 PM 7:00 PM ד 3ד דד ד 3 ו ד ה ILL N Y Y Y N Y Y Y Y Y 4/18 4/18 4/19 4/19 4/18 10:30 PM 10:30 PM 2:00 AM 1:00 AM 11:00 PM NNNNNNNNNNNNYN YYYNN NNYNNYNN YYYYNNNNYNNYYN YYNNNNNNYNYYYN NNNNNNNNNNNNYN YYNYYNNNNYNYNN YYYNYYYNYYNYNN NNNNNNNNNNNYYN NN NNNNNNNYNYN YYYNN YNNYNYYN YYYNYYNNNNNYNN YY NNYNNYNNYYY YYYNNYNNNN NNNNNNNNNNNYYN YYYYYYYYYYYYNN YYNNNYNNYNY YYN NN NNNNNNNNYNN YYNYNYYNNNNYNN YY? YN NNNYNNYN ΥΥΥΥΥΥΝ YYYYYN M F N N N Y 4/19 2:00 AM 11 65 12 38 13 62 14 10 15 25 16 32 17 62 18 36 19 11 20 33 T33333 M M F unk unk unk 7:30 PM unk unk unk unk unk unk ΖΖΖΣΖΣΣΣ ΖΣ Y Y Y N 4/19 4/19 4/18 10:30 AM 12:30 AM 10:15 PM M M 4/18 10:00 PM 4/19 4/18 1:00 AM 11:00 PM M M M 4/18 21 13 22 7 23 64 24 3 25 65 26 59 27 15 28 62 29 37 30 17 Y Y N Y N Y 9:45 PM 10:00 PM unk unk unk unk unk 10:00 PM unk unk 10:00 PM NNNNNNN NNYYNN ΥΥΥΥΥΥΥ YYYN NN NNNNNNNNYNN NYYNNYNNNYYYNN Y YNYNY YYN NYYYNYYNNYYYNN NNNNNNNNNNYYYN YYNYNYYNYYYNYN YYYNYYYNYNYYNN NNNNNNNNNNY YYN 4/18 4/19 9:45 PM 1:00 AM 11:00 PM M N Y N 4/18 M <<< דר33 33יצר ד?ר ד 2 M M Y Y Y 4/18 4/19 4/19 9:00 PM 1:00 AM 1:00 AM M 31 35 32 15 33 50 34 40 35 35 36 35 37 36 38 57 39 16 40 68 unk 10:00 PM 10:00 PM unk unk unk unk unk 10:00 PM unk N Y N 4/18 YYYNYYYNYNYYNY NNNNNNN NNYYNN NNNNNNNNNNNYNN YYNNNYYNY YYNYY YYYNNYYNYYNNYN YYYYNYYNYNNYNN YNYYNYYNYNNNYN YY YYYYNYNYYYN NNNNNNNNNNYNYN YNYYNNYNYNNYNN M 9:15 PM 11:30 PM 1:00 AM 9:30 PM 4/18 4/19 4/18 M
Baked ham Spinach <Mashed potatoes Cabbage salad Brown bread Van ice cream Choc ice cream Rolls Coffee Milk Water Cakes Fruit salad ILL DATE OF TIME OF ONSET ONSET 4/19 2:30 AM 4/19 2:00 AM 4/18 9:30 PM TIME ID AGE SEX OF MEAL 41 54 F unk 42 77 M unk 43 72 unk 44 58 M unk 45 20 M 10:00 PM 46 17 M unk 47 62 unk 48 20 7:00 PM 49 52 unk 50 9 unk Y Y Y N N Y Y Y N 4/19 4/19 4/18 12:30 AM 1:00 AM 10:30 PM YYYNNYNNY NY NYN NNNNNNNNNNNYNY YYNYYNYNYNY YYN YYYNNNY YYNNY? Y NNNNNNNNN YYYN YYYNNYNNNYNYYN YYNNNY NNNY NYNN NNNNNNNNNNNYNN YYYYNYNNYNNYYN NNNNNNNNNNYNYN YY YYNYN NNNNNNNNNNNYYN NNNNNNNNNNNYYN YYYYYYYYYNY YYN YN N NNNNNNNNNNNNYN YYYYYYYNYNYYNN NNNNNNNNNNY YYN YYYNNYNNNYYNYN YY YNYYYYYN TTT 3T371 133 TITI 733373 M M 4/18 51 50 52 8 53 35 54 48 55 25 56 11 57 74 58 12 59 44 60 53 M 4/19 4/18 unk 11:00 AM unk unk unk unk unk 10:00 PM 7:30 PM 7:30 PM N Y N Y Y N Y Y Y Y 3:00 PM 12:00 AM 11:00 PM 10:30 PM 1:00 AM 2:30 AM 11:30 PM M 4/18 4/19 4/19 4/18 F M ZZ 61 37 62 24 63 69 64 7 65 17 66 8 67 11 68 17 69 36 70 21 TIT 3 T 3 T 3 M F F unk unk unk unk 10:00 PM unk 7:30 PM 7:30 PM unk unk N N N N Y Y N N N Y 4/19 4/19 1:00 AM 12:30 AM M F F NNNNNNNNNNNNYN YY NYNNYNNNNN NYYNYNYNNYYNYN YYYYYYNNNYYNΥΝ NNNNNNNNNNY YYN YNY YYN NNNY YYN YYYYNY NYYNNYN YYYYNYNNYNYYNN NNNNNNNNNNNNYN YNNYYNNNNNNYYN NNNNN YYNN YYYYYNNN YYYYN NNNNNNNNNNYYNN YN YYYN YYYYN YY NYYNY 4/19 4/19 4/19 12:30 AM 1:00 AM 12:00 AM 71 60 72 18 73 14 74 52 75 45 T3T3 M F F M F 7:30 PM 7:30 PM 10:00 PM unk unk Y Y N Y Y 4/19 4/18 2:15 AM 11:00 PM * Midnight between 4/18 and 4/19
2. Refer to the Oswego Line List [PDF] to determine the attack rate for each food at the supper among persons who ate the specified food. a. Determine the total number of persons who ate the specified food. b. Determine the number who became ill and the number who did not become ill. Note: These figures added together should equal the total number of persons who ate the specified food. c. Calculate the attack rate for each food (or percent ill). This is the number ill who ate the specified food divided by the total
3. Refer to the Oswego Line List [PDF] AL to determine the attack rate for each food at the supper among persons who did not eat the specified food. a. Determine the total number of persons who did not eat the specified food. b. Determine the number who became ill and the number who did not become ill. Note: These figures added together should equal the total number of persons who did not eat the specified food. c. Calculate the attack rate for each food (or percent ill). This is the number ill who did not eat the specified food divided by the total number who did not eat the specified food.
4. Calculate the attack rate ratio for each food. This . is equal to the attack rate for those who ate the specified food (calculated in #2 above) divided by the attack rate for those who did not eat the specified food (calculated in #3 above).