For people with cats, some reassuring text:

  Given all the nasty science swirling around this parasite, is 
  it time for cat lovers to switch their allegiance to other 
  animals?

  Even Flegr would advise against that. Indoor cats pose no 
  threat, he says, because they don’t carry the parasite. As 
  for outdoor cats, they shed the parasite for only three 
  weeks of their life, typically when they’re young and have 
  just begun hunting.