Toxoplasmosis is an infection caused by eating undercooked, contaminated meat or contacting cat feces. It is spread by a parasite and can be accidentally ingested after handling food containing it and not washing thoroughly.
Cats can also spread the parasite through contact with cat feces. This can happen by: cleaning a cat's litter box when the cat has infected feces; accidentally ingesting contaminated soil that has come in contact with cat feces.
Symptoms of Toxoplasmosis may vary, from flu-like symptoms with muscle aches and pains to eye problems such as reduced vision, blurred vision, pain, eye redness, and tearing. Severe cases occur most likely in individuals with weak immune systems.