Hello - I always recommend worming the entire family including the family pets at the same time. Animals, including pets, can spread 240 diseases to humans via parasites. By petting or grooming animals, you are picking up eggs that pass from them to us via hands, nose and mouth. ALSO parasite infected fleas and ticks and parasite infected animal feces are concerns. Parasites can burrow into the ground from the feces waiting for another host to come along - this is why walking barefoot where animals have defecated is a major source of parasite infections - especially when you CAN'T SEE the actual animal feces - you just happen to be walking where they have been before.
When doing a parasites cleanse - it is VERY IMPORTANT to disinfect your home to get rid of any microscopic eggs AND to disinfect your yard if you have pets. Here's the protocol: remove any visible feces - mix 1 cup regular strength unscented bleach in 3 gallons of water - spray on yard once per week for four weeks.