The oocyst doesn't become infective for humans or other warm blooded animals until about 24  to 48 hours after shedding in the feces.  This is why pregnant women are advised that having someone else clean the cats litter box within the first 24 hours is preventive of Tg infection while pregnant.  Do you have any science to refute that?  It is NOT hard to contract, but in the first 24 hours after a cat defecates, the oocysts undergo a process called sporulation, which makes them subsequently more infective.