Answer:
It can be dangerous for a pregnant woman to change a litter box because of the risk of contracting a parasitical disease called toxoplasmosis, which will place the baby at risk of developing congenital toxoplasmosis.
Explanation:
Toxoplasmosis is a parasitical disease caused by Toxoplasma gondii. It is usually trasmitted by exposure to cysts that contain the parasite, and these are common in uncooked meats, from mother to baby, and most commonly from exposure to cat feces. In this case, a pregnant woman who handles a litter box becomes exposed precisely to that, cat feces, and can become infected with the parasite. Toxoplasmosis easily crosses the placental barrier and infects the baby, causing serious developmental problems.
