Antimicrobial therapy of persistent Anaplasma marginale infections

Abstract

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Transmission Dynamics of Bovine Anaplasmosis in a Cattle Herd

“…It has grave socioeconomic consequences often leading to trade restrictions both locally and internationally [ 29 ]. The costs of a clinical case of anaplasmosis in the United States on average is estimated to be over $400 per animal [ 14 ]. The effects of anaplasmosis infections on a previously uninfected herd can lead to 3.6% reduction in calf crop, 30% increase in cull rate, and 30% of adult cattle showing signs that the disease will die [ 14 , 15 ].…”

“…The costs of a clinical case of anaplasmosis in the United States on average is estimated to be over $400 per animal [ 14 ]. The effects of anaplasmosis infections on a previously uninfected herd can lead to 3.6% reduction in calf crop, 30% increase in cull rate, and 30% of adult cattle showing signs that the disease will die [ 14 , 15 ]. Other economic losses include decreased milk production, severe weight loss, and poor reproductive ability [ 31 ].…”

“…Bovine anaplasmosis is significant enough to study using a mathematical model due to its economic impact on farmers and ranchers. When Anaplasma infects a previously uninfected herd, the producer can expect a 3.6% reduction in successful calving, 30% increase in the cull rate, and 30% mortality in adults showing signs [ 14 , 15 ]. These rates are a significant detriment to cattlemen, and preventative strategies for the disease could be better incorporated using a target reproduction number which includes accurate geographical data and disease progression.…”