| afghanistan | | brucella melitensis | species | 4 | 0 |
| albania | | brucella melitensis | species | 4 | 0 |
| algeria | algiers province | brucella melitensis | species | 0 | 1 |
| algeria | tiaret province | brucella melitensis | species | 0 | 1 |
| argentina | | brucella melitensis | species | 1 | 0 |
| argentina | buenos aires province | brucella melitensis cngb 1120 | no rank | 4 | 0 |
| argentina | formosa province | brucella melitensis | species | 0 | 1 |
| argentina | jujuy province | brucella melitensis cngb 290 | no rank | 9 | 0 |
| argentina | salta province | brucella melitensis | species | 1 | 0 |
| argentina | san juan province | brucella melitensis cngb 1076 | no rank | 7 | 0 |
| australia | new south wales | brucella melitensis | species | 0 | 1 |
| austria | tyrol | brucella melitensis | species | 173 | 1 |
| austria | vienna | brucella melitensis | species | 449 | 0 |
| brazil | minas gerais | brucella melitensis | species | 0 | 1 |
| bulgaria | | brucella melitensis | species | 4 | 0 |
| canada | | brucella melitensis | species | 4 | 0 |
| china | | brucella melitensis | species | 114 | 0 |
| china | | brucella melitensis bv. 1 str. 133 | no rank | 348 | 0 |
| china | | brucella melitensis bv. 1 str. bcb028 | no rank | 256 | 0 |
| china | | brucella melitensis bv. 1 str. bcb033 | no rank | 330 | 0 |
| china | | brucella melitensis bv. 3 | no rank | 50 | 0 |
| china | | brucella melitensis bv. 3 str. 128 | no rank | 248 | 0 |
| china | | brucella melitensis m5-10 | no rank | 164 | 0 |
| china | beijing | brucella melitensis 16m1w | no rank | 168 | 0 |
| china | beijing | brucella melitensis bv. 1 str. 16m | no rank | 152 | 0 |
| china | gansu | brucella melitensis | species | 4 | 0 |
| china | guangdong | brucella melitensis | species | 0 | 1 |
| china | guangxi | brucella melitensis | species | 4 | 1 |
| china | guizhou | brucella melitensis | species | 0 | 1 |
| china | hainan | brucella melitensis | species | 45 | 0 |
| china | hainan | brucella melitensis bv. 3 | no rank | 106 | 0 |
| china | hebei | brucella melitensis | species | 29 | 0 |
| china | henan | brucella melitensis | species | 29 | 0 |
| china | henan | brucella melitensis bv. 1 | no rank | 54 | 0 |
| china | hubei | brucella melitensis | species | 28 | 0 |
| china | hunan | brucella melitensis | species | 41 | 0 |
| china | inner mongolia | brucella melitensis | species | 26 | 1 |
| china | inner mongolia | brucella melitensis bv. 3 | no rank | 26 | 0 |
| china | inner mongolia | brucella melitensis ni | no rank | 4 | 0 |
| china | jiangsu | brucella melitensis | species | 0 | 1 |
| china | jilin | brucella melitensis s66 | no rank | 148 | 0 |
| china | liaoning | brucella melitensis | species | 0 | 1 |
| china | liaoning | brucella melitensis bv. 1 | no rank | 50 | 0 |
| china | liaoning | brucella melitensis bv. 3 | no rank | 52 | 0 |
| china | qinghai | brucella melitensis | species | 60 | 0 |
| china | qinghai | brucella melitensis bv. 3 | no rank | 104 | 0 |
| china | shaanxi | brucella melitensis | species | 0 | 1 |
| china | shandong | brucella melitensis bv. 3 | no rank | 54 | 0 |
| china | shanxi | brucella melitensis | species | 0 | 1 |
| china | xinjiang | brucella melitensis | species | 296 | 1 |
| china | xinjiang | brucella melitensis 043 | no rank | 529 | 0 |
| china | xinjiang | brucella melitensis bv. 1 | no rank | 54 | 0 |
| croatia | | brucella melitensis | species | 8 | 0 |
| cyprus | | brucella melitensis | species | 9 | 1 |
| cyprus | | brucella melitensis uk3/06 | no rank | 3 | 0 |
| egypt | | brucella melitensis | species | 188 | 0 |
| egypt | faiyum governorate | brucella melitensis | species | 12 | 1 |
| france | | brucella melitensis | species | 16 | 0 |
| georgia | | brucella melitensis | species | 132 | 0 |
| georgia | kvemo kartli region | brucella melitensis | species | 75 | 0 |
| georgia | samtskhe-javakheti region | brucella melitensis | species | 82 | 0 |
| georgia | tbilisi | brucella melitensis | species | 66 | 0 |
| greece | | brucella melitensis | species | 24 | 0 |
| greece | crete region | brucella melitensis | species | 0 | 1 |
| grenada | | brucella melitensis | species | 0 | 1 |
| hong kong | | brucella melitensis | species | 0 | 2 |
| india | | brucella melitensis | species | 236 | 0 |
| india | | brucella melitensis 66/59 | no rank | 12 | 0 |
| india | | brucella melitensis admas-g1 | no rank | 20 | 0 |
| india | | brucella melitensis bv. 1 | no rank | 1 | 0 |
| india | | brucella melitensis bv. 2 str. 63/9 | no rank | 2 | 0 |
| india | chandigarh | brucella melitensis | species | 1224 | 0 |
| india | karnataka | brucella melitensis | species | 45 | 1 |
| india | maharashtra | brucella melitensis | species | 2 | 1 |
| india | punjab | brucella melitensis | species | 263 | 0 |
| india | tamil nadu | brucella melitensis | species | 33 | 0 |
| india | uttar pradesh | brucella melitensis | species | 2 | 0 |
| india | west bengal | brucella melitensis | species | 0 | 2 |
| iran | | brucella melitensis | species | 35 | 0 |
| iran | | brucella melitensis biovar melitensis | no rank | 1 | 0 |
| iran | hamadan province | brucella melitensis | species | 0 | 1 |
| iran | isfahan province | brucella melitensis | species | 0 | 1 |
| iran | razavi khorasan province | brucella melitensis | species | 0 | 1 |
| iran | tehran province | brucella melitensis | species | 0 | 1 |
| iran | zanjan province | brucella melitensis | species | 0 | 1 |
| iraq | | brucella melitensis | species | 30 | 0 |
| iraq | sulaymaniyah governorate | brucella melitensis | species | 1 | 0 |
| israel | | brucella melitensis | species | 1 | 0 |
| israel | jerusalem district | brucella melitensis | species | 0 | 2 |
| israel | southern district | brucella melitensis | species | 0 | 7 |
| italy | | brucella melitensis | species | 9705 | 0 |
| italy | emilia-romagna region | brucella melitensis | species | 0 | 1 |
| italy | lombardy region | brucella melitensis | species | 0 | 1 |
| italy | molise region | brucella melitensis | species | 0 | 1 |
| italy | sardinia autonomous region | brucella melitensis | species | 0 | 1 |
| italy | sicily autonomous region | brucella melitensis | species | 0 | 5 |
| italy | sicily autonomous region | brucella melitensis f15/06-7 | no rank | 26 | 0 |
| japan | shizuoka prefecture | brucella melitensis | species | 1 | 0 |
| jordan | | brucella melitensis | species | 4 | 0 |
| kenya | nairobi province | brucella melitensis | species | 0 | 1 |
| kosovo | | brucella melitensis | species | 0 | 1 |
| kosovo | | brucella melitensis f8/01-155 | no rank | 11 | 0 |
| kuwait | | brucella melitensis | species | 503 | 4 |
| kyrgyzstan | naryn region | brucella melitensis | species | 0 | 1 |
| malaysia | | brucella melitensis | species | 125 | 0 |
| malaysia | johor | brucella melitensis | species | 414 | 0 |
| malaysia | kedah | brucella melitensis | species | 3 | 0 |
| malaysia | melaka | brucella melitensis | species | 0 | 1 |
| malaysia | negeri sembilan | brucella melitensis | species | 0 | 1 |
| malaysia | perlis | brucella melitensis | species | 0 | 1 |
| malaysia | pulau pinang | brucella melitensis | species | 173 | 1 |
| malaysia | selangor | brucella melitensis | species | 0 | 1 |
| malta | | brucella melitensis | species | 0 | 5 |
| malta | | brucella melitensis b115 | no rank | 12 | 0 |
| mexico | | brucella melitensis | species | 2 | 0 |
| mexico | baja california | brucella melitensis | species | 0 | 1 |
| mexico | federal district | brucella melitensis | species | 0 | 1 |
| mexico | guanajuato | brucella melitensis | species | 0 | 1 |
| mexico | jalisco | brucella melitensis | species | 0 | 1 |
| mexico | michoacan ocampo | brucella melitensis | species | 0 | 1 |
| mexico | zacatecas | brucella melitensis | species | 0 | 1 |
| mongolia | | brucella melitensis | species | 12 | 0 |
| morocco | | brucella melitensis | species | 4 | 0 |
| niger | diffa region | brucella melitensis | species | 0 | 1 |
| niger | dosso region | brucella melitensis | species | 0 | 1 |
| niger | maradi region | brucella melitensis | species | 0 | 1 |
| niger | zinder region | brucella melitensis | species | 0 | 1 |
| nigeria | | brucella melitensis uk24/06 | no rank | 7 | 0 |
| nigeria | niger | brucella melitensis | species | 0 | 1 |
| nigeria | ogun | brucella melitensis | species | 0 | 1 |
| norway | | brucella melitensis | species | 9 | 0 |
| norway | | brucella melitensis f3/02 | no rank | 12 | 0 |
| norway | more og romsdal county | brucella melitensis | species | 0 | 1 |
| pakistan | | brucella melitensis | species | 20 | 0 |
| pakistan | | brucella melitensis bg2 (s27) | no rank | 10 | 0 |
| palestinian territory | west bank | brucella melitensis | species | 4 | 0 |
| peru | lima region | brucella melitensis | species | 0 | 1 |
| peru | lima region | brucella melitensis | species | 0 | 1 |
| portugal | | brucella melitensis | species | 9 | 0 |
| portugal | | brucella melitensis f10/05-2 | no rank | 28 | 0 |
| portugal | | brucella melitensis f2/06-6 | no rank | 15 | 0 |
| portugal | acores autonomous region | brucella melitensis | species | 0 | 1 |
| qatar | | brucella melitensis | species | 0 | 2 |
| russia | | brucella melitensis | species | 679 | 0 |
| russia | buryatia republic | brucella melitensis | species | 0 | 1 |
| russia | dagestan republic | brucella melitensis | species | 281 | 1 |
| russia | irkutsk oblast | brucella melitensis | species | 0 | 1 |
| russia | kalmykia republic | brucella melitensis | species | 423 | 1 |
| russia | saratov oblast | brucella melitensis 548 | no rank | 125 | 0 |
| russia | stavropol krai | brucella melitensis | species | 262 | 1 |
| russia | tambov oblast | brucella melitensis | species | 0 | 1 |
| russia | tuva republic | brucella melitensis | species | 0 | 1 |
| saudi arabia | | brucella melitensis | species | 13 | 0 |
| saudi arabia | asir region | brucella melitensis | species | 0 | 1 |
| saudi arabia | riyadh region | brucella melitensis | species | 10 | 3 |
| saudi arabia | tabuk region | brucella melitensis | species | 0 | 1 |
| serbia | | brucella melitensis | species | 9 | 0 |
| serbia | central serbia | brucella melitensis | species | 828 | 0 |
| somalia | | brucella melitensis | species | 8 | 0 |
| somalia | | brucella melitensis uk19/04 | no rank | 7 | 0 |
| somalia | | brucella melitensis uk22/06 | no rank | 12 | 0 |
| south africa | gauteng province | brucella melitensis | species | 3 | 1 |
| south africa | kwazulu-natal province | brucella melitensis | species | 0 | 3 |
| south africa | mpumalanga province | brucella melitensis | species | 0 | 1 |
| south africa | the western cape province | brucella melitensis | species | 0 | 1 |
| south sudan | upper nile | brucella melitensis | species | 0 | 1 |
| spain | andalusia | brucella melitensis | species | 0 | 1 |
| spain | castilla-la mancha | brucella melitensis | species | 0 | 2 |
| spain | catalonia | brucella melitensis | species | 0 | 2 |
| spain | valencia | brucella melitensis | species | 0 | 1 |
| sudan | | brucella melitensis f6/05-6 | no rank | 10 | 0 |
| sudan | al jazirah | brucella melitensis | species | 0 | 1 |
| sudan | kassala | brucella melitensis | species | 0 | 2 |
| sudan | khartoum | brucella melitensis | species | 0 | 1 |
| sudan | river nile | brucella melitensis | species | 0 | 1 |
| switzerland | graubunden region | brucella melitensis | species | 0 | 1 |
| syria | | brucella melitensis | species | 52 | 0 |
| syria | aleppo governorate | brucella melitensis | species | 0 | 1 |
| syria | damascus governorate | brucella melitensis | species | 0 | 2 |
| syria | tartus governorate | brucella melitensis | species | 0 | 1 |
| tanzania | | brucella melitensis | species | 9 | 0 |
| thailand | | brucella melitensis f10/06-16 | no rank | 3 | 0 |
| thailand | bangkok | brucella melitensis | species | 0 | 1 |
| thailand | nakhon nayok province | brucella melitensis | species | 0 | 1 |
| thailand | phetchabun province | brucella melitensis | species | 0 | 1 |
| thailand | phra nakhon si ayutthaya province | brucella melitensis | species | 0 | 1 |
| turkey | | brucella melitensis | species | 56 | 0 |
| turkey | | brucella melitensis f9/05 | no rank | 12 | 0 |
| turkey | ankara province | brucella melitensis | species | 0 | 2 |
| turkey | gaziantep province | brucella melitensis | species | 0 | 1 |
| turkey | mugla province | brucella melitensis | species | 0 | 1 |
| turkey | samsun province | brucella melitensis | species | 0 | 1 |
| turkey | van province | brucella melitensis | species | 0 | 1 |
| turkmenistan | | brucella melitensis | species | 4 | 0 |
| united arab emirates | | brucella melitensis | species | 9 | 0 |
| united kingdom | | brucella melitensis | species | 29 | 0 |
| united kingdom | | brucella melitensis uk22/04 | no rank | 36 | 0 |
| united kingdom | | brucella melitensis uk29/05 | no rank | 3 | 0 |
| united kingdom | | brucella melitensis uk37/05 | no rank | 10 | 0 |
| united kingdom | england | brucella melitensis | species | 0 | 4 |
| united states | | brucella melitensis | species | 7 | 0 |
| united states | california | brucella melitensis | species | 4 | 3 |
| united states | connecticut | brucella melitensis | species | 44 | 0 |
| united states | illinois | brucella melitensis | species | 0 | 1 |
| united states | iowa | brucella melitensis | species | 0 | 3 |
| united states | michigan | brucella melitensis | species | 0 | 2 |
| united states | texas | brucella melitensis | species | 0 | 7 |
| zimbabwe | | brucella melitensis f1/06 b10 | no rank | 9 | 0 |
| zimbabwe | harare province | brucella melitensis | species | 0 | 1 |