Acute Taxoplasmosis can be acquired in immune compromised patients, like cancer, and mainly from contact with fecal matter, and mainly from cats. But if I had a pet, I would just be cautious, use gloves when changing litter, wear mask, and hand wash then, and also after petting, and others may want go avoid contact or exposure. There are some other disease, infections from pets and animals like Cyrptoridiosis, Mycobacterium, Ascarid infections, Campylobacteriosis, Chlamydial, Cryptococcosis, Giardiasis, Psittacosis-Ornithosos, ringworm, and Salmonellosis.