There are some scenes of criminal cold-blooded murder by killers in highway patrol and Army uniforms.
There are very few scenes of violence and little-to-no gore.
When Andromeda infects humans, their arteries+veins pop out
Some humans infected with Andromeda have homicidal tendencies (mostly gun violence; one person decapitates himself using a chainsaw (very quick and seen through a camera). We see lots of dead bodies. They have veins popping out on their faces. A woman torches herself. Men are shot. People commit suicide by shooting themselves in the head.
A cop shoots multiple people in a diner then shoots himself in the neck. Blood is shown.