That was recently suggested by

David J. Bzik and Barbara Fox.

Regards,

Joachim

Are there any further studies on this aspect and how promising or feasible this would be!

The press release mentions a study

on the vaccine, cps, but no DOI.

http://cancer.dartmouth.edu/focus/Tgondii_cps.html

Regards,

Joachim

100 year old approach that still has a great deal of potential 

http://www.damninteresting.com/coley%E2%80%99s-cancer-killing-concoction/

also see a recent story in Scientific American 

http://www.scientificamerican.com/article/did-cancer-evolve-to-protect-us/

Can you please clarify  these questions: 

1-How can Toxoplasma gondii cause cancer?

2-How can Toxoplasma gondii infection have a potential way to treat cancer?