NAVLE Practice Test 2025 – The Comprehensive Guide to Mastering the North American Veterinary Licensing Examination!

The recommended method for controlling anaplasmosis in adult cattle in the United States is the use of long-acting oxytetracycline for the entire herd. This antibiotic treatment is effective against the bacterial agent causing anaplasmosis, Anaplasma marginale, and helps reduce the prevalence of the disease. By administering it to the entire herd, the approach aims to treat existing infections and prevent the spread of the disease among cattle, particularly in areas where anaplasmosis is endemic.

While vaccination is an option, modified live vaccines for anaplasmosis are not universally recommended in all regions or for all herds due to variability in effectiveness and the potential for adverse reactions. Therefore, while vaccines play a role in prevention, they do not serve as the primary control method in acute situations, especially when an outbreak is present.

Culling affected cows can help in managing anaplasmosis; however, it is not as proactive as administering long-acting oxytetracycline to the entire herd. This method addresses both treatment and prevention dynamics to limit disease spread, making it a broader approach than just culling.

Imidocarb prophylaxis is used mainly for the treatment of other parasitic infections, particularly in dogs and cats,