Texas Register, Volume 7, Number 89, Pages 4125-4234, December 3, 1982 Page: 4,196
4125-4234 p. ; 28 cm.View a full description of this periodical.
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Texas
Register
Accelerated Brucellosis Program
Areas and counties involved
Area 4: Bowie, Delta, Fannin, Franklin, Hopkins, Lamar, and Red River
Area 7: Brazos, Falls, Grimes, Leon, Madison, and Robertson
Area 8: Anderson, Houston, Smith, and Wood
Area 10: Austin, Brazoria, Calhoun, Colorado, Jackson, Matagorda, Waller, and Wharton
Area 15: Freestone, Henderson, Kaufman, Limestone, McLennan, Navarro, and Van Zandt
One county in each area has been designated as a "pilot project." They are:
Area 4: Hopkins, Area 7: Robertson, Area 8: Smith; Area 10: Colorado, Area 15: Henderson
News Release for Accelerated Brucellosis Program
One of the major questions relating to brucellosis control is vaccinating with the reduced dosage of Strain 19. A pro-
gram to increase vaccination of eligible heifers is now underway in this area, according to
The reduced dosage of Strain 19 vaccine for brucellosis control is virtually as effective as the old strength, Dr. John
W. Holcombe, executive director, Texas Animal Health Commission, Austin, reports.
The old strength of Strain 19 contained about 90 billion organisms. The new reduced dosage has about one billion
organisms. "Experience over the years indicated the old strength might be too large and could overwhelm the younger
calves' immunity systems resulting in no immunity being produced. In older heifers, this large dose would occasionally
S produce vaccinal titers," it was explained by Dr. Holcombe.
The reduced dosage is sufficient to produce immunity.
Vaccination is a cornerstone of the Texas brucellosis program. Vaccination ages for heifers as official vaccinates are
four to 12 months of age for all breeds. Bulls are not vaccinated.
Financial assistance is available for vacccination of eligible heifers. Contact local officials for details.
Submitted by Texas Animal Health Commission.
iI-December 3, 1982
7 TexReg 4196
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Texas. Secretary of State. Texas Register, Volume 7, Number 89, Pages 4125-4234, December 3, 1982, periodical, December 3, 1982; Austin, Texas. (https://texashistory.unt.edu/ark:/67531/metapth244852/m1/72/: accessed July 17, 2024), University of North Texas Libraries, The Portal to Texas History, https://texashistory.unt.edu; crediting UNT Libraries Government Documents Department.