A new study suggests Toxoplasma gondii oocysts could be more common in the environment than previously believed, and exposure to a single oocyst could cause infection. However, researchers note that cat ownership has not been shown to influence risk of infection, and AVMA spokeswoman Dr. Kimberly May says responsible cat owners likely face less risk than the general public. She says risks can be addressed through frequent litter box cleaning, hand-washing and other practices. "We are concerned that cats are being the scapegoats for this," Dr. May says.
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