Microbiological status of laboratory rodents in experimental facilities in Japan*

* Numbers of positive facilities/ Numbers of facilities tested

2019

Mice

Items of positive resultCategory1P/C2U/I3
Helicobacter bilis C 0 / 134   3 / 707 (0.4%)
Helicobacter hepaticus C 2 / 206 (1.0%) 7 / 937 (0.7%)
Mycoplasma pulmonis B 0 / 345   2 / 2,470 (0.08%)
Pasteurella pneumotropica D 0 / 180   73 / 1,814 (4.0%)
Pseudomonas aeruginosa D 0 / 150   26 / 1,003 (2.6%)
Staphylococcus aureus D 15 / 116 (12.9%) 73 / 597 (12.2%)
Mouse hepatitis virus B 0 / 420   9 / 2,622 (0.3%)
Murine norovirus C 0 / 57   8 / 303 (2.6%)
Amoebas E 0 / 251   93 / 2,186 (4.3%)
Aspiculuris sp. C 0 / 254   37 / 2,214 (1.7%)
Chilomastix sp. E 0 / 251   60 / 2,185 (2.7%)
Octomitus sp. E 0 / 251   112 / 2,185 (5.1%)
Spironucleus sp. C 0 / 251   1 / 2,189 (0.05%)
Syphacia sp. E 0 / 254   12 / 2,204 (0.5%)
Trichomonad E 0 / 251   89 / 2,187 (4.1%)

 

Rats

Items of positive resultCategory1P/C2U/I3
CAR bacillus C 1 / 15 (6.7%) 2 / 27 (7.4%)
Clostridium piliforme
(Tyzzer's organism) 		C 1 / 193 (0.5%) 2 / 583 (0.3%)
Mycoplasma pulmonis B 0 / 185   2 / 481 (0.4%)
Pasteurella pneumotropica D 1 / 82 (1.2%) 13 / 239 (5.4%)
Pseudomonas aeruginosa D 0 / 56   10 / 129 (7.8%)
Staphylococcus aureus D 3 / 27 (11.1%) 29 / 60 (48.3%)
Amoebas E 0 / 114   8 / 406 (2.0%)
Aspiculuris sp. C 0 / 114   2 / 404 (0.5%)
Chilomastix sp. E 0 / 114   4 / 406 (1.0%)
Octomitus sp. E 0 / 114   5 / 406 (1.2%)
Syphacia sp. E 0 / 114   4 / 409 (1.0%)
Trichomonad E 0 / 114   9 / 406 (2.2%)

2018

Mice

Items of positive resultCategory1P/C2U/I3
Corynebacterium bovis D 2 / 14 (14.3%)4 0 / 18  
CAR bacillus C 0 / 112   1 / 176 (0.6%)
Helicobacter bilis C 0 / 143   1 / 685 (0.1%)
Helicobacter hepaticus C 1 / 206 (0.5%) 13 / 935 (1.4%)
Mycoplasma pulmonis B 0 / 378   6 / 2,471 (0.2%)
Pasteurella pneumotropica D 1 / 205 (0.5%) 79 / 1,810 (4.5%)
Pneumocystis murina (B) 0 / 158   4 / 571 (0.7%)
Pseudomonas aeruginosa D 0 / 179   22 / 979 (2.2%)
Staphylococcus aureus D 17 / 130 (13.0%) 92 / 595 (15.5%)
Mouse hepatitis virus B 0 / 476   23 / 2,648 (0.9%)
Murine norovirus C 0 / 62   4 / 312 (1.3%)
Amoebas E 0 / 269   220 / 2,220 (9.9%)
Aspiculuris sp. C 0 / 274   53 / 2,248 (2.4%)
Chilomastix sp. E 0 / 269   123 / 2,220 (5.5%)
Giardia sp. C 0 / 269   1 / 2,220 (0.1%)
Octomitus sp. E 0 / 269   240 / 2,220 (10.8%)
Spironucleus sp. C 0 / 269   3 / 2,220 (0.1%)
Syphacia sp. E 1 / 275 (0.4%) 36 / 2,250 (1.6%)
Trichomonad E 0 / 269   217 / 2,220 (9.8%)

 

Rats

Items of positive resultCategory1P/C2U/I3
Bordetella bronchiseptica C 0 / 160   1 / 414 (0.2%)4
CAR bacillus C 1 / 25 (4.0%) 0 / 23  
Clostridium piliforme
(Tyzzer's organism) 		C 0 / 222   8 / 508 (1.6%)
Corynebacterium kutscheri C 0 / 174   3 / 435 (0.7%)
Mycoplasma pulmonis B 1 / 221 (0.5%) 2 / 476 (0.4%)
Pasteurella pneumotropica D 1 / 102 (1.0%) 10 / 238 (4.2%)
Pneumocystis carinii (B) 0 / 43   1 / 60 (1.7%)
Pseudomonas aeruginosa D 0 / 78   4 / 127 (3.1%)
Staphylococcus aureus D 8 / 33 (24.2%) 27 / 57 (47.4%)
Amoebas E 0 / 132   7 / 405 (1.7%)
Chilomastix sp. E 0 / 132   2 / 405 (0.5%)
Syphacia sp. E 0 / 136   12 / 413 (2.9%)
Trichomonad E 0 / 132   4 / 405 (1.0%)

2017

Mice

Items of positive resultCategory1P/C2U/I3
Corynebacterium bovis D 10 / 24 (41.7%)4 0 / 1  
Helicobacter bilis C 0 / 116   3 / 718 (0.4%)
Helicobacter hepaticus C 0 / 144   34 / 970 (3.5%)
Helicobacter spp. C 0 / 29   8 / 35 (22.9%)
Pasteurella pneumotropica D 0 / 173   94 / 1,973 (4.8%)
Pneumocystis murina (B) 0 / 125   5 / 598 (0.8%)
Pseudomonas aeruginosa D 0 / 137   29 / 1,024 (2.8%)
Staphylococcus aureus D 9 / 105 (8.6%) 105 / 639 (16.4%)
Mouse hepatitis virus B 2 / 443 (0.5%) 8 / 2,746 (0.3%)
Murine astrovirus C 0 / 0   1 / 12 (8.3%)
Murine norovirus C 1 / 57 (1.8%) 15 / 331 (4.5%)
Amoebas E 0 / 256   321 / 2,287 (14.0%)
Aspiculuris sp. C 0 / 266   98 / 2,313 (4.2%)
Chilomastix sp. E 0 / 256   126 / 2,282 (5.5%)
Octomitus sp. E 0 / 256   336 / 2,282 (14.7%)
Syphacia sp. E 0 / 268   54 / 2,318 (2.3%)
Trichomonad E 0 / 256   151 / 2,282 (6.6%)

 

Rats

Items of positive resultCategory1P/C2U/I3
Clostridium piliforme
(Tyzzer's organism) 		C 2 / 205 (1.0%)4 10 / 512 (2.0%)
Corynebacterium kutscheri C 0 / 128   1 / 441 (0.2%)
Mycoplasma pulmonis B 0 / 191   1 / 489 (0.2%)
Pasteurella pneumotropica D 0 / 71   14 / 244 (5.7%)
Pseudomonas aeruginosa D 1 / 49 (2.0%) 5 / 137 (3.6%)
Staphylococcus aureus D 3 / 11 (27.3%) 37 / 73 (50.7%)
Amoebas E 0 / 146   31 / 402 (7.7%)
Chilomastix sp. E 0 / 146   17 / 402 (4.2%)
Octomitus sp. E 0 / 146   19 / 402 (4.7%)
Spironucleus sp. C 0 / 148   2 / 406 (0.5%)
Syphacia sp. E 0 / 151   37 / 412 (9.0%)
Trichomonad E 0 / 146   37 / 402 (9.2%)

2016

Mice

Items of positive resultCategory1P/C2U/I3
Helicobacter bilis C 0 / 124   1 / 729 (0.1%)4
Helicobacter hepaticus C 0 / 106   36 / 999 (3.6%)
Pasteurella pneumotropica D 1 / 155 (0.6%) 120 / 2,120 (5.7%)
Pneumocystis murina (B) 0 / 119   3 / 615 (0.5%)
Pseudomonas aeruginosa D 0 / 129   39 / 1,052 (3.7%)
Staphylococcus aureus D 3 / 101 (3.0%) 95 / 643 (14.8%)
Mouse hepatitis virus B 0 / 424   20 / 2,793 (0.7%)
Murine astrovirus C 13 / 26 (50.0%) 1 / 1 (100.0%)
Murine norovirus C 0 / 86   13 / 309 (4.2%)
Sendai virus B 0 / 363   1 / 2,636 (0.03%)
Amoebas E 0 / 248   172 / 2,376 (7.2%)
Aspiculuris sp. C 1 / 270 (0.4%) 79 / 2,387 (3.3%)
Chilomastix sp. E 0 / 248   77 / 2,376 (3.2%)
Ectoparasites E 0 / 251   1 / 2,361 (0.04%)
Octomitus sp. E 0 / 249   197 / 2,376 (8.3%)
Spironucleus sp. C 0 / 250   2 / 2,384 (0.08%)
Syphacia sp. E 0 / 263   41 / 2,374 (1.7%)
Trichomonad E 1 / 249 (0.4%) 146 / 2,376 (6.1%)

 

Rats

Items of positive resultCategory1P/C2U/I3
Clostridium piliforme
(Tyzzer's organism) 		C 3 / 201 (1.5%)4 33 / 535 (6.2%)
Mycoplasma pulmonis B 0 / 194   1 / 492 (0.2%)
Pasteurella pneumotropica D 0 / 66   7 / 262 (2.7%)
Pneumocystis carinii (B) 0 / 31   1 / 73 (1.4%)
Pseudomonas aeruginosa D 0 / 30   10 / 130 (7.7%)
Staphylococcus aureus D 7 / 16 (43.8%) 36 / 72 (50.0%)
Sendai virus B 0 / 193   1 / 485 (0.2%)
Amoebas E 0 / 111   19 / 398 (4.8%)
Chilomastix sp. E 0 / 111   15 / 398 (3.8%)
Octomitus sp. E 0 / 111   20 / 398 (5.0%)
Spironucleus sp. C 0 / 113   1 / 402 (0.2%)
Syphacia sp. E 0 / 116   15 / 404 (3.7%)
Trichomonad E 0 / 111   22 / 398 (5.5%)

2015

Mice

Items of positive resultCategory1P/C2U/I3
Helicobacter hepaticus C 0 / 104   17 / 1,183 (1.4%)4
Mycoplasma pulmonis B 0 / 616   2 / 2,786 (0.1%)
Pasteurella pneumotropica D 2 / 177 (1.1%) 130 / 2,364 (5.5%)
Pneumocystis murina (B) 3 / 107 (2.8%) 10 / 728 (1.4%)
Pseudomonas aeruginosa D 0 / 114   33 / 1,161 (2.8%)
Staphylococcus aureus D 5 / 89 (5.6%) 155 / 785 (14.6%)
Mouse hepatitis virus B 1 / 403 (0.2%) 24 / 2,924 (0.8%)
Murine astrovirus C 11 / 15 (73.3%) 0 / 1  
Murine norovirus C 0 / 42   19 / 332 (5.7%)
Amoebas E 1 / 270 (0.4%) 182 / 2,570 (7.1%)
Aspiculuris sp. C 0 / 266   49 / 2,560 (1.9%)
Chilomastix sp. E 0 / 253   77 / 2,570 (3.0%)
Octomitus sp. E 0 / 253   194 / 2,570 (7.5%)
Spironucleus sp. C 0 / 255   1 / 2,578 (0.04%)
Syphacia sp. E 0 / 270   33 / 2,565 (1.3%)
Trichomonad E 2 / 253 (0.8%) 140 / 2,570 (5.4%)

 

Rats

Items of positive resultCategory1P/C2U/I3
CAR bacillus C 1 / 24 (4.2%)4 0 / 32  
Clostridium piliforme
(Tyzzer's organism) 		C 1 / 203 (0.5%) 7 / 492 (1.4%)
Mycoplasma pulmonis B 0 / 237   2 / 489 (0.4%)
Pasteurella pneumotropica D 0 / 69   13 / 266 (4.9%)
Pseudomonas aeruginosa D 1 / 40 (2.5%) 5 / 126 (4.0%)
Staphylococcus aureus D 9 / 19 (47.4%) 36 / 74 (48.6%)
Amoebas E 2 / 113 (1.8%) 21 / 396 (5.3%)
Chilomastix sp. E 1 / 113 (0.9%) 14 / 396 (3.5%)
Octomitus sp. E 1 / 113 (0.9%) 15 / 396 (3.8%)
Spironucleus sp. C 0 / 116   2 / 400 (0.5%)
Syphacia sp. E 0 / 119   14 / 397 (3.5%)
Trichomonad E 1 / 113 (0.9%) 14 / 396 (3.5%)

2014

Mice

Items of positive resultCategory1P/C2U/I3
Helicobacter bilis C 1 / 112 (0.9%)4 2 / 863 (0.2%)
Helicobacter hepaticus C 1 / 243 (0.4%) 24 / 1,170 (2.1%)
Mycoplasma pulmonis B 0 / 500   4 / 2,777 (0.1%)
Pasteurella pneumotropica D 3 / 270 (1.1%) 125 / 2,331 (5.4%)
Pneumocystis murina (B) 1 / 119 (0.8%) 4 / 736 (0.5%)
Pseudomonas aeruginosa D 1 / 190 (0.5%) 37 / 1,223 (3.0%)
Staphylococcus aureus D 12 / 105 (11.4%) 132 / 841 (15.7%)
Mouse hepatitis virus B 3 / 575 (0.5%) 23 / 2,882 (0.8%)
Murine astrovirus C 9 / 16 (56.3%) 0 / 1  
Murine norovirus C 1 / 39 (2.6%) 22 / 339 (6.5%)
Amoebas E 3 / 364 (0.8%) 162 / 2,515 (6.4%)
Aspiculuris sp. C 0 / 374   64 / 2,509 (2.6%)
Chilomastix sp. E 0 / 363   69 / 2,515 (2.7%)
Ectoparasites E 0 / 362   2 / 2,511 (0.08%)
Giardia muris C 0 / 366   1 / 2,521 (0.04%)
Octomitus sp. E 6 / 365 (1.6%) 159 / 2,515 (6.3%)
Syphacia sp. E 0 / 376   23 / 2,512 (0.9%)
Trichomonad E 1 / 364 (0.3%) 156 / 2,515 (6.2%)

 

Rats

Items of positive resultCategory1P/C2U/I3
Bordetella bronchiseptica C 3 / 130 (2.3%)4 2 / 380 (0.5%)
CAR bacillus C 1 / 31 (3.2%) 0 / 26  
Clostridium piliforme
(Tyzzer's organism) 		C 0 / 210   9 / 443 (2.0%)
Mycoplasma pulmonis B 1 / 209 (0.5%) 3 / 437 (0.7%)
Pasteurella pneumotropica D 2 / 78 (2.6%) 10 / 223 (4.5%)
Pseudomonas aeruginosa D 0 / 39   3 / 115 (2.6%)
Staphylococcus aureus D 13 / 22 (59%) 40 / 68 (58.8%)
Amoebas E 0 / 109   9 / 347 (2.6%)
Aspiculuris sp. C 0 / 111   1 / 346 (0.3%)
Chilomastix sp. E 0 / 109   11 / 347 (3.2%)
Octomitus sp. E 0 / 109   9 / 347 (2.6%)
Syphacia sp. E 0 / 114   13 / 350 (3.7%)
Trichomonad E 0 / 109   14 / 347 (4.0%)

2013

Mice

Items of positive resultCategory1P/C2U/I3
Clostridium piliforme
(Tyzzer's organism) 		C 0 / 499   1 / 2,855 (0.04%)4
Helicobacter hepaticus C 3 / 312 (1.0%) 22 / 1,123 (2.0%)
Mycoplasma pulmonis B 0 / 503   3 / 2,786 (0.1%)
Pasteurella pneumotropica D 2 / 315 (0.6%) 97 / 2,484 (3.9%)
Pneumocystis murina (B) 0 / 108   3 / 685 (0.4%)
Pseudomonas aeruginosa D 0 / 249   43 / 1,291 (3.3%)
Staphylococcus aureus D 14 / 130 (10.8%) 176 / 875 (20.1%)
Mouse hepatitis virus B 7 / 580 (1.2%) 23 / 3,046 (0.8%)
Murine norovirus C 0 / 29   18 / 247 (7.3%)
Sendai virus B 0 / 510   1 / 2,886 (0.03%)
Amoebas E 3 / 384 (0.8%) 173 / 2,637 (6.6%)
Aspiculuris sp. C 0 / 384   48 / 2,639 (1.8%)
Chilomastix sp. E 0 / 384   70 / 2,636 (2.7%)
Octomitus sp. E 2 / 384 (0.5%) 94 / 2,636 (3.6%)
Syphacia sp. E 0 / 388   32 / 2,644 (1.2%)
Trichomonad E 3 / 384 (0.8%) 130 / 2,637 (4.9%)

 

Rats

Items of positive resultCategory1P/C2U/I3
Clostridium piliforme
(Tyzzer's organism) 		C 2 / 209 (1.0%)4 15 / 422 (3.6%)
Mycoplasma pulmonis B 1 / 208 (0.5%) 4 / 403 (1.0%)
Pasteurella pneumotropica D 1 / 72 (1.4%) 9 / 228 (4.0%)
Pseudomonas aeruginosa D 1 / 11 (9.1%) 1 / 113 (0.9%)
Staphylococcus aureus D 6 / 13 (46.2%) 47 / 73 (64.4%)
Sendai virus B 1 / 220 (0.5%) 1 / 372 (0.3%)
Amoebas E 0 / 96   13 / 310 (4.2%)
Chilomastix sp. E 0 / 96   6 / 310 (1.9%)
Octomitus sp. E 0 / 96   8 / 310 (2.6%)
Spironucleus sp. C 0 / 98   1 / 314 (0.3%)
Syphacia sp. E 0 / 98   12 / 314 (3.8%)
Trichomonad E 0 / 96   4 / 310 (1.3%)

2012

Mice

Items of positive resultCategory1P/C2U/I3
Helicobacter bilis C 3 / 128 (2.3%)4 0 / 679  
Helicobacter hepaticus C 4 / 272 (1.5%) 41 / 1,027 (4.0%)
Mycoplasma pulmonis B 1 / 501 (0.2%) 4 / 2,700 (0.1%)
Pasteurella pneumotropica D 3 / 357 (0.8%) 107 / 2,355 (4.5%)
Pneumocystis murina (B) 0 / 104   6 / 506 (1.2%)
Pseudomonas aeruginosa D 2 / 234 (0.9%) 21 / 1,099 (1.9%)
Staphylococcus aureus D 13 / 136 (9.6%) 161 / 727 (22.1%)
Mouse hepatitis virus B 7 / 566 (1.2%) 28 / 2,888 (1.0%)
Murine norovirus C 0 / 4   4 / 57 (7.0%)
Amoebas E 9 / 368 (2.4%) 182 / 2,480 (7.3%)
Aspiculuris sp. C 0 / 377   75 / 2,480 (3.0%)
Chilomastix sp. E 0 / 364   61 / 2,476 (2.5%)
Octomitus sp. E 1 / 364 (0.3%) 173 / 2,476 (7.0%)
Spironucleus sp. C 0 / 372   3 / 2,479 (0.1%)
Syphacia sp. E 0 / 385   29 / 2,482 (1.2%)
Trichomonad E 6 / 364 (1.6%) 117 / 2,476 (4.7%)

 

Rats

Items of positive resultCategory1P/C2U/I3
CAR bacillus C 1 / 29 (3.4%)4 1 / 23 (4.3%)
Clostridium piliforme
(Tyzzer's organism) 		C 2 / 192 (1.0%) 4 / 396 (1.0%)
Mycoplasma pulmonis B 0 / 199   5 / 373 (1.3%)
Pasteurella pneumotropica D 0 / 76   6 / 203 (3.0%)
Pseudomonas aeruginosa D 0 / 28   2 / 116 (1.7%)
Staphylococcus aureus D 8 / 11 (72.7%) 52 / 76 (68.4%)
Amoebas E 0 / 75   10 / 275 (3.6%)
Aspiculuris sp. C 0 / 78   0 / 276  
Chilomastix sp. E 0 / 75   7 / 275 (2.5%)
Octomitus sp. E 0 / 75   3 / 275 (1.1%)
Spironucleus sp. C 0 / 77   3 / 278 (1.1%)
Syphacia sp. E 0 / 80   18 / 279 (6.5%)
Trichomonad E 0 / 75   5 / 275 (1.8%)

2011

Mice

Items of positive resultCategory1P/C2U/I3
Helicobacter bilis C 0 / 174   1 / 409 (0.2%)4
Helicobacter hepaticus C 0 / 238   28 / 646 (4.3%)
Mycoplasma pulmonis B 2 / 433 (0.5%) 2 / 2,098 (0.1%)
Pasteurella pneumotropica D 0 / 288   116 / 1,861 (6.2%)
Pneumocystis murina (B) 1 / 72 (1.4%) 1 / 209 (0.5%)
Pseudomonas aeruginosa D 0 / 193   17 / 617 (2.8%)
Staphylococcus aureus D 10 / 93 (10.8%) 59 / 275 (21.5%)
Mouse hepatitis virus B 8 / 585 (1.4%) 24 / 2,215 (1.1%)
Murine norovirus C 5 / 22 (22.7%) 9 / 96 (9.4%)
Amoebas E 0 / 273   180 / 1,846 (9.8%)
Aspiculuris sp. C 0 / 282   60 / 1,841 (3.3%)
Chilomastix sp. E 0 / 273   63 / 1,843 (3.4%)
Octomitus sp. E 0 / 273   147 / 1,845 (8.0%)
Syphacia sp. E 0 / 285   28 / 1,859 (1.5%)
Trichomonad E 0 / 273   105 / 1,847 (5.7%)

 

Rats

Items of positive resultCategory1P/C2U/I3
CAR bacillus C 1 / 45 (2.2%)4 0 / 24  
Clostridium piliforme
(Tyzzer's organism) 		C 0 / 249   5 / 296 (1.7%)
Mycoplasma pulmonis B 0 / 243   3 / 279 (1.1%)
Pasteurella pneumotropica D 1 / 102 (1.0%) 7 / 161 (4.3%)
Pseudomonas aeruginosa D 0 / 32   3 / 51 (5.9%)
Staphylococcus aureus D 4 / 10 (40.0%) 13 / 19 (68.4%)
Amoebas E 0 / 86   18 / 177 (10.2%)
Aspiculuris sp. C 0 / 86   1 / 178 (0.6%)
Chilomastix sp. E 0 / 86   2 / 177 (1.1%)
Octomitus sp. E 0 / 86   6 / 177 (3.4%)
Spironucleus sp. C 0 / 88   2 / 183 (1.1%)
Syphacia sp. E 0 / 91   17 / 183 (9.3%)
Trichomonad E 0 / 86   8 / 177 (4.5%)

2010

Mice

Items of positive resultCategory1P/C2U/I3
Helicobacter bilis C 0 / 41   1 / 318 (0.3%)4
Helicobacter hepaticus C 2 / 68 (2.9%) 19 / 597 (3.2%)
Mycoplasma pulmonis B 0 / 196   2 / 1,700 (0.1%)
Pasteurella pneumotropica D 0 / 126   126 / 1,571 (8.0%)
Pneumocystis carinii
(P. murina)		 (B) 2 / 42 (4.8%) 2 / 109 (1.8%)
Pseudomonas aeruginosa D 0 / 49   22 / 421 (5.2%)
Staphylococcus aureus D 5 / 36 (13.9%) 41 / 142 (28.9%)
Mouse hepatitis virus B 0 / 227   39 / 1,852 (2.1%)
Murine norovirus C 0 / 5   8 / 68 (11.8%)
Sendai virus B 0 / 199   1 / 1,742 (0.1%)
Amoebas E 3 / 87 (3.5%) 160 / 1,493 (10.7%)
Aspiculuris sp. C 0 / 95   59 / 1,463 (4.0%)
Chilomastix sp. E 0 / 83   68 / 1,489 (4.6%)
Ectoparasite C 0 / 83   1 / 1,458 (0.1%)
Octomitus sp. E 1 / 83 (1.2%) 142 / 1,489 (9.5%)
Syphacia sp. E 0 / 95   36 / 1,460 (2.5%)
Trichomonad E 0 / 83   74 / 1,491 (5.0%)

 

Rats

Items of positive resultCategory1P/C2U/I3
Clostridium piliforme
(Tyzzer's organism) 		C 2 / 146 (1.4%)4 10 / 252 (4.0%)
Mycoplasma pulmonis B 0 / 132   2 / 356 (0.6%)
Pasteurella pneumotropica D 0 / 68   16 / 166 (9.6%)
Pseudomonas aeruginosa D 0 / 20   1 / 39 (2.6%)
Staphylococcus aureus D 5 / 8 (62.5%) 9 / 11 (81.8%)
Sialodacryoadenitis virus
(SDAV)		 C 0 / 145   1 / 246 (0.4%)
Amoebas E 0 / 41   7 / 150 (4.7%)
Aspiculuris sp. C 0 / 42   1 / 150 (0.7%)
Chilomastix sp. E 0 / 41   2 / 150 (1.3%)
Octomitus sp. E 0 / 41   10 / 150 (6.7%)
Spironucleus sp. C 0 / 41   2 / 150 (1.3%)
Syphacia sp. E 0 / 43   20 / 150 (13.3%)
Trichomonad E 0 / 41   12 / 150 (8.0%)

2009

Mice

Items of positive resultCategory1P/C2U/I3
Helicobacter hepaticus C 2 / 98 (2.0%)4 21 / 485 (4.3%)
Mycoplasma pulmonis B 0 / 259   5 / 1,527 (0.3%)
Pasteurella pneumotropica C 1 / 213 (0.5%) 75 / 1,544 (4.9%)
Pneumocystis carinii
(P. murina)		 (B) 0 / 26   4 / 57 (7.0%)
Pseudomonas aeruginosa D 0 / 108   17 / 396 (4.3%)
Staphylococcus aureus D 11 / 77 (14.3%) 36 / 124 (29.0%)
Mouse hepatitis virus B 0 / 284   21 / 1,621 (1.3%)
Sendai virus B 0 / 260   3 / 1,526 (0.2%)
Aspiculuris sp. C 0 / 191   43 / 1,402 (3.1%)
Ectoparasite C 0 / 188   0 / 1,414  
Intestinal protozoa C, E 5 / 188 (2.7%) 146 / 1,414 (10.3%)
Syphacia sp. E 0 / 191   26 / 1,402 (1.9%)

 

Rats

Items of positive resultCategory1P/C2U/I3
CAR bacillus C 2 / 16   1 / 220 (0.5%)4
Clostridium piliforme
(Tyzzer's organism) 		C 1 / 176 (0.6%) 4 / 220 (1.8%)
Corynebacterium kutscheri C 0 / 115   2 / 185 (1.1%)
Mycoplasma pulmonis B 6 / 172 (3.5%) 6 / 220 (2.7%)
Pasteurella pneumotropica C 0 / 120   8 / 144 (5.6%)
Pseudomonas aeruginosa D 0 / 23   4 / 32 (12.5%)
Staphylococcus aureus D 5 / 13 (38.5%) 8 / 11 (72.7%)
Sialodacryoadenitis virus
(SDAV)		 C 0 / 193   2 / 216 (0.9%)
Intestnal protozoa C, E 1 / 97 (1.0%) 10 / 162 (6.2%)
Syphacia sp. E 1 / 97 (1.0%) 11 / 162 (6.8%)

1: Category A, pathogens that might infect humans;
    Category B, pathogens fatal to animals;
    Category C, pathogens not fatal, but can cause diseases in animals and affect their physiological functions;
    Category D, opportunistic pathogens;
    Category E, indicators of the microbiological status of an animal colony

2: Pharmaceutical companies and contract research organizations

3: Universities and institutes

4: Positive rates

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