Yes. Toxoplasmosis increases your reaction time (infected people simply react slower), raising your chances of having an accident. That applies both to infected drivers and pedestrians. Infected people, especially those with a Rh‑negative blood type, should take special care when driving and may want to avoid working as professional drivers and air‑traffic controllers. The longer you’re infected, the slower your reactions get, but at the same time the likelihood of you having an accident decreases (you gradually get used to your increased reaction time).