united states – mexico bi-national tick committee meeting texas state report dee ellis, dvm, mpa...

United States – Mexico Bi-National

Tick Committee Meeting

Texas State ReportDee Ellis, DVM, MPA

Texas State Veterinarian

www.tahc.state.tx.us

Current Fever Tick Information

As of December 31, 2009

90 premises Quarantine:

• 25 in the Free Area

• 65 in the Tick Eradication Quarantine Area

496 adjacent or check premises:

• 165 in the Quarantined Area


As of December 31, 2010

111 premises Quarantine:


• 55 in the Tick Eradication Quarantine Area

439 adjacent or check premises:

• 137 in the Quarantined Area



Blanket Areas under Temporary Quarantine

179,600 acres


Carrizo Springs

Texas State ReportCattle Fever Tick Eradication Program

(CFTEP)

Carrizo Springs Blanket Quarantine Area (BQA)

• Established 8/07 on approx. 622,000 acres

• No new or recurrent infestations since 5/09

• Approx. 179,000 acres remain

• Final release expected in Spring of 2011


Zapata & Jim Hogg423,000 acres



(CFTEP) Zapata & Jim Hogg Portion – Southern Blanket

Quarantine Area (BQA)

• Intensive cattle/wildlife treatment program continues through 2011

• 2010 Free Area infestations found only on premises adjacent to Tick Eradication Quarantine Area (TEQA)

• Infestation due to displaced white-tail deer from the TEQA flooding

• Re-inspection of herds underway, surveillance completed by 6/11

• Partial release in summer of 2011


Wildlife Treatment Sites 2010 Zapata County TEQA

Northern Sector

Zapata Townsite

San Ygnacio

Mexico


Starr Co.152,700 acres


(CFTEP)

Starr County Portion – Southern Blanket Quarantine Area (BQA), approx. 160,000 acres

• Continued problems with infestation of white-tail deer on vacant premises

• Responding to systematic treatment in cattle & horses• Expected to downsize by end of 2011• Intensified wildlife treatment program underway



Olmal152,700 acres


(CFTEP)

Third BQA, Olmal, approx. 152,700 acres – no documented cases in wildlife.

• Responding to systematic treatment in cattle & horses• Possible downsizing by end of 2011• Re-evaluation of wildlife involvement underway• No documented cases of fever ticks in wildlife



(CFTEP)

Deer Treatment Program

• Distribution of Ivomec corn Feb-July (must stop 60 days prior to hunting season)

• Distribution of Permethrin product during hunting season (4 poster)


Wildlife Treatment Products limited…

•Ivomec-corn used in feeders •4-poster (below left)•Closed Gravity Flow

Feeder (below right)

Withdraw prior

to hunting season!

CFTEP Activities in FY 2010• New equipment--- deer feeding, vehicles, computers,

tractors, portable dip vats, spray boxes, etc.• New staff--- targeted to areas of need– deer feeding,

epidemiologists, MPI’s in Starr County, IT support• New management --- borrowed from other successful

programs--- written Herd plans, emphasis on epidemiology, mapping, RFID / MIMS in each quarantined herd

• More interaction/consultation with wildlife biologists

Treated Corn Delivery to Deer

•USDA begins bulk feeding of Ivomec-treated corn•Bulk mixing equipment purchased•Large trucks to deliver•More personnel assigned to affected counties

CFTEP Activities (continued)

• Database development• custom software or utilize TAHC mgt. software• deer feeding program 1st • Infested pasture management 2nd (CFTEP info

management is identical to 1943)• Increased accountability program results• Increased ability for public to analyze success• Quarterly management reviews• Monthly Information dissemination

Future Tools• Vaccines?

• Gavac under ARS evaluation in Texas – field trial in 2011

• Australian• Autogenous?

• Ivermectin Treated Molasses Tubs • MUMS approval process by FDA underway by Postive Feed -TX

• Advantage • self-treat cattle on infested or adjacent pastures • minimize the expense of gathering the cattle

• Field trial in 2011 – final approval time uncertain

Texas Bovine Tuberculosis Report


Texas State ReportTuberculosis


• Currently no known infected cattle herds in Texas

• Last infected herd West Texas dairy depopulated April 2010

• 7 possible source herds – 3 states - all tested negative

• No source ultimately found



• From infected herd - Texas Animal Health Commission (TAHC) traced 5,500 dairy cattle sold as trace outs

• TAHC tested 65 herds/65,000 cattle as result

• No infection found

• Texas’ mandatory ID program key to finding trace animals

2010 Activities:

• 4 fed cattle TB cases detected at slaughter

• All 4 traced to Mexico

• 2 had ID and 2 were in lots of Mexican cattle

• Close oversight of veterinarian caudal fold response rate

Success - .95% for 2010 vs. .398% in 2006



Brucellosis Report


Texas State ReportBrucellosis

• 1 newly infected cattle herd detected in South Texas 1/11

• Market testing found 3 positives, 3 more found on herd test

• culture + - b. abortus biotype 1



• Infected herd epidemiological investigation underway• 1 possible source herd• Test 1 mile circle of surrounding herds to start• Trace as far back as market records allow• Owner never sold adult cattle• 1st infected herd found after over 6,000,000 cattle tested




• Texas has more than 100 livestock markets

• Texas surveillance includes 1st point testing at

markets – adult cattle

• 1,000,000 adult tested per yr.

• Budget cuts may threaten future testing


• Swine brucellosis infection cattle continues to complicate diagnosis

• 8 cattle confirmed infected with b. suis in 2010 in Tx.

• Cattle vaccine needed for future protection against feral swine


“Because Livestock and

Poultry Health Matters”

1-800-550-8242Find us on

Facebook & Twitter


united states – mexico bi-national tick committee meeting texas state report dee ellis, dvm, mpa...

Documents

mpatexas state veterinarianwww

quarantined area

premises quarantine

free area infestations

systematic treatment

treatment sites

acresblanket areas

premises adjacent