Antifreeze and windshield de-icer should be kept out of the reach of children and pets. Ethylene glycol should not be spilled on the ground where it can be accidentally swallowed.
Long-term effects depend on the amount of ethylene glycol swallowed and how much time goes by before treatment is started. Kidney failure, congestive heart failure, heart damage and death can occur.
This is not a contagious disease.