To answer your question, there are several parasites that can be transmitted from pets to humans through contact with contaminated feces. One of the most common parasites is called Toxoplasma gondii.
Toxoplasma gondii is a single-celled parasite that can infect all warm-blooded animals, including humans. It is commonly found in the feces of infected cats, which can then contaminate soil or other surfaces. Humans can become infected with Toxoplasma gondii by accidentally ingesting contaminated soil, water, or food, or by coming into contact with cat feces.
Most people who become infected with Toxoplasma gondii do not experience any symptoms. However, some people may develop flu-like symptoms such as fever, headache, and muscle aches. In rare cases, the parasite can cause more serious complications such as eye infections or brain damage.
To prevent the transmission of Toxoplasma gondii and other parasites from pets to humans, it is important to practice good hygiene. This includes washing your hands thoroughly after handling pets or cleaning up their feces, avoiding contact with cat litter boxes if possible, and cooking meat thoroughly to kill any potential parasites.