If you are pregnant or plan to become pregnant, have another person clean out the litter box every day and try to keep your cats indoors so they can not eat infected rodents. (oregonvma.org)
Keeping cats indoors also eliminates exposure to the feces of infected pets and the eating of infected rodents. (lbah.com)
Some may contract parasites through fleas or eating infected rodents. (petwave.com)