Times have changed. Pinkeye outbreaks are now seen year-round due to the increased incidence of Moraxella bovoculi. Some have nicknamed this “winter pinkeye,” says Karlin Yaeger, global sales manager for Addison Biological Laboratory. He shared Addison’s 20-plus years of diagnostic lab experiences which reinforce Moraxella bovis as the primary cause of pinkeye. However, other organisms such as Moraxella bovoculi appear to work as a co-pathogen.
It has been our experience it is difficult to generate severe ocular lesions in calves with M. bovoculi alone, but severe lesions can be induced when M. bovis and M.bovoculi are both involved.
Source: Progressive Cattleman, October 2018, page 32. Link. This article originally appeared in Progressive Dairyman magazine. Addison announced the approval of the world’s first commercial Moraxella bovoculi vaccine for the prevention of pinkeye in cattle in February 2018. This USDA-conditionally licensed product is the first of its kind. The product features eight specifically different Moraxella bovoculi isolates and an easily syringeable adjuvant.
Also see: Sponsored Content – Pinkeye cofactors reprint, Animal Health Digest, June 24, 2018. Link. Reprintable .pdf of the article.
Also see: Heed new pinkeye management protocols, Animal Health Digest, April 24, 2018. Link.