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Winter 2009 Newsletter


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Percent resistance to antimicrobials from selected animal pathogens
 --data supplied by Bacteriology Section, ADDL, Purdue University
(periods of Jan.-June and July- Dec. 2008) (in companion aminals)

Please note that when the veterinary break points are not available, the human ones are used. 
 
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 39 47 0 0 0 0 33 33 76 68 0 0 100 0 nt nt 57 69 13 18 41 70 52 48 2 2
Ceftiofur 15 7 0 0 0 0 33 33 46 34 0 0 0 0 0 0 52 63 0 9 36 24 19 21 2 3
Chlortetracycline 78 43 0 0 0 0 33 33 94 81 0 33 100 33 nt nt 52 74 19 45 94 90 77 69 93 87
Clindamycin 100 100 100 2 100 100 100 100 100 100 100 100 100 100 nt nt 100 100 13 27 100 100 100 100 85 81
Enrofloxacin 12 29 0 0 0 0 33 0 23 23 0 0 0 0 nt nt 4 0 0 9 0 2 0 0 5 6
Florphenicol 61 43 0 0 0 0 33 33 73 58 0 33 0 33 nt nt 57 66 0 27 59 46 52 38 0 1
Gentamicin 17 0 0 0 0 0 33 0 58 37 0 0 0 0 nt nt 4 0 63 36 21 23 7 17 17 8
Neomycin 22 29 0 1 0 50 33 0 89 67 67 67 100 100 nt nt 35 69 56 82 55 41 29 24 27 25
Oxytetracycline 81 43 0 1 33 50 33 33 97 84 33 67 100 100 nt nt 57 74 50 55 95 92 81 69 97 92
Penicillin 100 100 nt 0 0 nt 100 100 100 100 nt 0 100 100 nt nt 100 100 100 55 100 100 100 100 7 13
Spectinomycin 34 29 0 2 0 50 67 0 79 67 33 33 100 0 nt nt 57 40 33 64 57 64 68 45 17 19
Sulphadimethoxine 68 47 33 0 0 100 100 100 78 69 50 67 100 60 0 10 83 94 13 9 81 78 94 79 70 77
Tiamulin 95 86 0 0 0 0 100 100 97 100 0 0 0 33 nt nt 100 100 0 9 100 93 100 100 10 19
Tilmicosin 100 100 0 0 0 0 100 100 100 100 0 33 0 67 nt nt 100 100 6 18 100 100 100 100 81 78
Triple Sulfa 22 21 0 0 0 0 33 0 77 61 0 33 100 33 nt nt 13 6 0 18 26 27 10 14 7 6
Tylosin nt nt nt 2 100 nt nt nt nt nt nt 100 100 nt nt nt nt nt nt nt nt nt nt nt nt nt
number of isolates 11 14 3 2 3 4 4 3 62 57 4 3 10 10 9 10 23 35 16 11 106 93 31 29 59 118
 nt - not tested

Locations


ADDL-West Lafayette:
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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