How would fight military/government

Picture this apocalypse.

It is the early days of the apocalypse now zombies ( slow,running and spread by bodily fluids)

Are everywhere across North America. Thanks to chaos and looting all around government issues order killed off any people in infected zones or disarm or disarming population from further chaos,looting, rebellion and controlling remain population.

This is also including local police,state police and national guards units who have not been federalized. Now what is your plan now dealing with infection and now governments