A dog is hurt at 15 minutes when it attacks a boy. The boy grabs the muzzle and the dog whimpers. Near the beginning(12 min 30 seconds in), a woman sits in a therapy session with Nicole Kidman and explains how her husband murders their dog (Bobo). If you skip these scenes nothing is missed in the point of the movie.
An infected child gets pushed into a wooden bed frame and hits his head, knocking him unconscious. An uninfected child gets choked with a metal pipe for a few seconds and then later also gets knocked unconscious.
We are told by a woman in a therapy session how her husband killed her dog. Nothing is shown. In another short scene a family dog is shown turning vicious toward a child, you are made aware that the dog was hurt, but nothing was shown.
It happens throughout the movie as those who are infected v*mit to infect others. People can be seen v*miting into other people’s mouths and it’s pretty graphic. I do not recommend this movie if you are sensitive to this topic.
When Nicole Kidman is driving in the tunnel with her son, a woman gets hit by a car being driven by one of the infected. You see the impact but it is not bloody or gory.