And the "dirt vaccine" seems to boost/correct the immune system of both pigs and men: http://www.guardian.co.uk/uk/1999/sep/18/5 http://www.guardian.co.uk/uk/1

And the "dirt vaccine" seems to boost/correct the immune system of both pigs and men: http://www.guardian.co.uk/uk/1999/sep/18/5 http://www.guardian.co.uk/uk/1999/sep/18/5 and http://www.thepigsite.com/swinenews/7892/dirt-vaccine-research http://www.thepigsite.com/swinenews/7892/dirt-vaccine-resear...