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Winter 2005 Newsletter


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Percent of Micro-organisms in Food Animals
that are Resistant to Selected Antibiotics from Jan.- Dec. 2004 
(in Companion Animals)

 
Beef
Dairy
Swine
Antibiotic  E. coli Man. haemolitica Past. multocida Salmonella sp. E. coli Man. haemolitica Past. multocida Staph. aureus Salmonella sp. Haemophilus sp. E. coli Salmonella sp. Strep. suis
  Jan.-
June
July-
Dec.
Jan.-
June
July-
Dec.
Jan.-
June
July-
Dec.
Jan.-
June
July-
Dec.
Jan.-
June
July-
Dec.
Jan.-
June
July-
Dec.
Jan.-
June
July-
Dec.
Jan.-
June
July-
Dec.
Jan.-
June
July-
Dec.
Jan.-
June
July-
Dec.
Jan.-
June
July-
Dec.
Jan.-
June
July-
Dec.
Jan.-
June
July-
Dec.
Ampicillin 33 35 25 0 0 0 0 67 55 52 40 13 0 0 38 89 75 66 16 13 61 69 35 48 1 3
Apramycin 4 8 0 33 25 100 0 0 26 19 0 50 75 71 nt nt 3 0 2 4 21 20 3 0 28 43
Ceftiofur 8 19 0 0 0 0 0 0 25 27 0 0 0 0 0 0 69 63 2 0 17 25 15 10 3 12
Chlortetracycline 57 65 0 0 0 0 0 0 82 84 40 13 13 0 nt nt 78 69 5 0 95 98 85 81 92 92
Clindamycin 100 96 100 100 100 100 0 100 96 95 100 100 100 100 nt nt 100 100 5 13 100 100 100 100 90 82
Enrofloxacin 6 15 50 0 0 1 0 0 16 19 40 25 0 0 nt nt 0 0 0 0 0 0 0 0 4 0
Erythromycin 100 96 25 0 0 50 0 100 97 96 20 13 38 25 6 0 100 100 14 8 100 100 100 95 87 81
Florphenicol 100 96 25 0 0 33 0 100 96 95 20 0 38 14 nt nt 100 100 2 0 100 100 100 95 60 69
Gentamicin 12 23 0 0 0 17 0 0 45 43 20 0 13 0 nt nt 0 13 0 0 23 20 0 10 4 5
Neomycin 24 35 25 33 0 83 0 67 70 69 80 25 63 57 nt nt 25 53 18 13 51 53 9 14 50 64
Oxytetracycline 61 69 50 33 0 83 0 67 82 86 80 25 63 57 nt nt 78 69 66 63 97 99 85 81 95 94
Penicillin 100 96 25 33 25 67 0 100 97 96 80 75 25 25 38 89 100 100 70 50 100 100 100 95 5 16
Sulphadimethoxine 39 50 50 33 0 83 0 67 65 62 80 25 63 50 88 100 83 69 25 17 58 77 74 86 59 62
Spectinomycin 33 54 100 100 50 50 0 100 63 73 80 100 75 86 nt nt 100 100 64 67 74 53 97 95 21 29
Sulphachloropyridazine 39 50 50 33 25 83 0 67 82 80 40 0 88 86 nt nt 78 69 14 13 86 77 74 81 59 62
Sulphathiazole 39 50 50 33 50 83 0 67 82 80 80 25 88 71 nt nt 78 72 50 50 86 77 74 81 63 60
Tiamulin 100 96 50 67 75 83 0 100 96 95 40 75 100 100 nt nt 100 100 5 8 99 100 100 100 19 22
Tilmicosin 96 96 25 0 0 50 0 100 96 94 0 0 50 29 nt nt 100 100 7 9 100 100 100 95 86 81
Triple Sulfa 18 31 0 0 0 33 0 0 55 56 40 13 13 14 nt nt 8 34 2 0 28 32 9 0 1 0
Tylosin 100 96 100 100 100 83 0 100 96 95 100 100 100 100 nt nt 100 100 nt nt 100 100 100 100 nt nt
number of isolates 51 26 4 3 4 6 0 3 76 81 5 8 8 7 15 9 36 32 44 24 159 101 34 21 103 86
 nt - not tested

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406 S. University
West Lafayette, IN 47907
Phone: 765-494-7440
Fax: 765-494-9181

ADDL-SIPAC
11367 E. Purdue Farm Road
Dubois, IN 47527
Phone: (812) 678-3401
Fax: (812) 678-3412

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