the litter box parasite is not new research
oh pleaze....
all parasites and diseases will cause problems for their hosts in one way or another, and many of them are shared between animals and humans.
hell, our regular ingestion of food and sexual indiscretions causes problems like erratic behaviors, dual personalities, greed, depression, loss of smell, taste and common sense, etc, etc, etc,....
hell, the bacteria in ones mouth can cause an array of problems, especially when the saliva is ingested or passed on through kissing.
to focus on cats and one type of parasite resulting from litter boxes, is not really research, especially when this particular parasite has already been known by the medical profession for many years.