Which of the following statements by a pregnant woman indicates she needs additional teaching on ways to reduce risks to her unborn child from the potential effects of exposure to toxoplasmosis?

The statement indicating a need for additional teaching is the one about wearing a mask when cleaning the cat's litter box. While it is true that toxoplasmosis can be transmitted through contact with cat litter, simply wearing a mask is not a sufficient protective measure. The proper approach involves more comprehensive precautions, such as having someone else clean the litter box or wearing gloves and washing hands thoroughly afterward. Additionally, it is important to ensure that the litter box is cleaned daily, as the Toxoplasma gondii organism does not become infectious until 1-5 days after it is excreted in the feces.

In contrast, the other statements reflect appropriate risk-reduction strategies. Avoiding rare lamb and rare beef are important since undercooked or raw meats can harbor the parasite that causes toxoplasmosis. The understanding that exposure can lead to severe consequences, such as blindness in the baby, also indicates awareness of the risks associated with toxoplasmosis, which is essential for taking preventive actions.