while the use of antibiotics to treat an outbreak of AFB is potentially worthwhile, the 
preventative use in beehives could be caught up in some new proposed legislation 
restricting the use in agriculture animals. 

http://www.hsus.org/legislation_laws/federal_legislation/animals_in_research/preservation_
of_antibiotics.html

or google H.R. 1549 and S. 619

how many beekeepers over use tylosin or TM?

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