Pinkeye is a very common as well as a highly contagious disease in cattle. Once it shows up, if you do not take proper steps immediately, it can quickly affect all of your cattle.
It can occur year-round, but it is mainly a seasonal affliction. This disease usually increases in spring, peaks during summer, and then decreases during the fall. This cycle is because, like most bacteria, it prefers warmer weather to cold.
It can be very labor-intensive to treat, and as I mentioned a couple of lines ago, it can spread quickly if not taken care of in time. No matter the severity, it is best that you quarantine all of the cattle that have it so you can prevent it from spreading to the others.