Hey, I'm not really a runner, but I got through about half of couch to 5 k a year ago and learned a lot about breathing in the process. Learning breath control was a huge thing for me, and it helps with all types of workouts.
Anyway, when I tried running I looked up tips and found this
article. It suggests starting with a normal walk, being really careful about keeping even, deep breaths and paying attention to the number of strides per breath. Then you speed up the walk, keeping your breath the same, then finally start jogging with the same breath pattern. What I found worked really well was to focus on my breath during a 5 min walking warm up, then I could transition into jogging without loosing my pattern. After a while it became second nature and even though I don't really run often anymore, it helps me with other cardio, as well as weightlifting. Hope that helps, and have fun running from those zombies