“…In fact, fi nding L. salivarius in human feces is not surprising but the important point is discovering its probiotic property. L. salivarius is found growing naturally in the oral cavities (Busarcevic et al, 2008;Koll et al, 2008), intestines (Ryan et al, 2008), vagina (Juarez et al, 2002;Kilic et al, 2005;Vera et al, 2009), and feces of animals (Nemcova et al, 1997;Robredo and Torres, 2000) such as calves, chickens, pigs (Lahteinen et al, 2010;Yun et al, 2009) and humans (Maldonado et al, 2009). In addition, it was also found in the breast milk of mothers (Maldonado et al, 2010;Martin et al, 2006).…”