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| Time | Event |
|
| 1974 | (i) Last known BTB-infected cattle herd in Michigan depopulated |
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| 1975 | (i) BTB-infected wild white-tailed deer harvested by a hunter in Alcona County |
|
| 1979 | (i) State of Michigan designated as BTB-accredited free |
|
| 1994 | (i) BTB-infected wild white-tailed deer harvested by a hunter in Alpena County |
|
| 1995 | (i) BTB surveillance of hunter killed wild white-tailed deer, cattle, and privately owned cervid herds in 16 km radius around location of 1994 BTB infected wild white-tailed deer was initiated |
| (ii) MDNR conducted BTB surveillance in wild white-tailed deer within portions of Alcona, Alpena, Montmorency, and Oscoda counties (Deer Management Unit (DMU) 452) |
| (iii) 18 of 403 (4.47%) wild white-tailed deer found infected with BTB |
| (iv) Testing of all cattle and privately owned cervid herds located within 5 miles of any BTB positive wild white-tailed deer initiated |
|
| 1996 | (i) Statewide BTB surveillance in wild white-tailed deer and other wildlife began |
| (ii) MDNR expanded BTB surveillance in wild white-tailed deer beyond DMU 452 to include all of Alcona, Alpena, Montmorency, and Oscoda counties |
| (iii) Disease Control Permits issued |
| (iv) 56 of 4,966 (1.13%) wild white-tailed deer found infected with BTB |
| (v) 1 coyote found infected with BTB |
|
| 1997 | (i) The 1st privately owned white-tailed deer herd found infected with BTB |
| (ii) 73 of 3,720 (1.96%) wild white-tailed deer found infected with BTB |
| (iii) 2 coyotes found infected with BTB |
|
| 1998 | (i) 3 beef cattle herds found infected with BTB |
| (ii) State of Michigan’s BTB-free status suspended |
| (iii) BTB testing of all cattle and cervid herds in 5-county area initiated |
| (iv) Deer feeding banned, baiting restricted, and doe harvest increased in an Enforced Restricted Area (ERA) bordered by interstate road (I-75), state road (M-55), and shoreline of Lake Huron |
| (v) DMU 452 expanded to encompass 5-county area (Alcona, Alpena, Montmorency, Oscoda, Presque Isle counties) |
| (vi) Antlerless hunting permits issued liberally (1 per day) in the DMU 452 |
| (vii) 78 of 9,057 (0.86%) wild white-tailed deer found infected with BTB |
| (viii) 1 bear, 2 raccoons, and 2 coyotes found infected with BTB |
|
| 1999 | (i) Baiting regulation initiated in the northeastern Lower Peninsula of the state |
| (ii) Unlimited antlerless hunting permits made available in the DMU 452 |
| (iii) BTB testing for movement from any cattle herds East of I-75 and North of M-55 initiated |
| (iv) 1 beef cattle herd found infected with BTB |
| (v) 58 of 19,496 (0.3%) wild white-tailed deer found infected with BTB |
|
| 2000 | (i) Baiting/feeding of Deer and Elk banned in counties with BTB positive wild white-tailed deer |
| (ii) Statewide official ear tag identification of cattle initiated |
| (iii) Statewide BTB testing of all cattle herds by the end of 2003 initiated |
| (iv) 2 dairy and 5 beef cattle herds found infected with BTB |
| (v) State status dropped to Modified Accredited |
| (vi) 53 of 25,858 (0.2%) wild white-tailed deer found infected with BTB |
|
| 2001 | (i) DMU 452 redefined to what it was in 1996 but the area shifted slightly east from the original 1996 DMU 452 |
| (ii) USDA APHIS began fencing project on BTB high-risked cattle farms |
| (iii) 8 beef cattle herds found infected with BTB |
| (iv) 61 of 24,278 (0.25%) wild white-tailed deer found infected with BTB |
|
| 2002 | (i) BTB program changed: |
| (a) Alcona, Alpena, Montmorency, Presque Isle counties—annual herd test of all cattle herds except feedlots was initiated. A negative BTB test required for movement of sexually active cattle if >6 months from whole herd test (WHT) |
| (b) Cheboygan, Crawford, Iosco, Ogemaw, Oscoda, Otsego counties—Biennial WHT of all cattle herds except feedlots was initiated. A negative BTB test required for movement of sexually active cattle if >6 months from WHT |
| (c) Antrim, Arenac, Charlevoix, Emmet, Gladwin, Kalkaska, Roscommon counties—2 WHT to be completed between 2000 and 2003. A negative BTB test required for movement of sexually active cattle if >6 months from WHT |
| (i) Emmet County began annual WHT of all cattle herds except feedlots |
| (ii) Antlerless hunting permits were increased for the northeast of the state |
| (iii) 1 mixed, 2 dairy, and 4 beef cattle herds found infected with BTB |
| (iv) 51 of 18,100 (0.28%) wild white-tailed deer found infected with BTB |
|
| 2003 | (i) Statewide WHT completed |
| (ii) 2 dairy and 4 beef cattle herds found infected with BTB |
| (iii) 32 of 17,302 (0.18%) wild white-tailed deer found infected with of BTB |
|
| 2004 | (i) State of Michigan acquired split state status: Modified Accredited Zone (MAZ) and Modified Accredited Advanced Zone (MAAZ) |
| (ii) The gamma interferon assay approved for follow-up testing of caudal fold test suspects |
| (iii) BTB program changed. |
| (a) Annual WHT of all cattle herds in MAZ except feedlots initiated. Negative TB test for movement of sexually intact cattle if >60 days from WHT |
| (b) Rest of Michigan-stratified random surveillance of 1500 herds every two years was initiated |
| (iii) 2 dairy cattle herds found infected with BTB |
| (iv) 28 of 15,131 (0.19%) wild white-tailed deer found infected with BTB |
|
| 2005 | (i) Upper Peninsula part of the state elevated to BTB-Free status |
| (ii) 3 beef cattle herds found infected with BTB |
| (iii) 16 of 7,364 (0.22%) wild white-tailed deer found infected with BTB |
|
| 2006 | (i) The 2nd privately owned deer herd found infected with BTB |
| (ii) 2 dairy, 1 mixed, and 1 beef cattle herd found infected with BTB |
| (iii) 41 of 7,914 (0.52%) wild white-tailed deer found infected with BTB |
|
| 2007 | (i) Implementation of official electronic identification ear tags mandatory for all cattle within the state. |
| (ii) Annual WHT of feedlots within the MAZ implemented |
| (iii) 1 dairy and 2 beef cattle herds found infected with BTB |
| (iv) 27 of 8,316 (0.32%) wild white-tailed deer found infected with BTB |
|
| 2008 | (i) One time WHT of all cattle herds located in Arenac, Clare, Gladwin, Grand Traverse, Iosco, Kalkaska, Missaukee, Ogemaw, Osceola, Roscommon, and Wexford counties within 3 years initiated |
| (ii) A beef and a mixed cattle herd infected with BTB |
| (iii) The 3rd privately owned deer herd found infected with BTB |
| (iv) 37 of 16,309 (0.23%) wild white-tailed deer found infected with BTB |
|
| 2009 | (i) 1 beef cattle herd found infected with BTB |
| (ii) The 4th privately owned deer herd found infected with BTB |
| (ii) 31 of 5,722 (0.54%) wild white-tailed deer found infected with BTB |
|
| July 2010 | (i) 3 beef cattle herds found infected with BTB |
| (ii) 6 of 306 (1.96%) wild white-tailed deer found infected with BTB |
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