Interestingly, Andersen-Civil et al. [18] observed a similar expansion of the genus Lactobacillus in the jejunum and colon of A. suum-infected pigs at day 14 p.i. Since a decrease in lactase activity has been observed during A. suum infection [57], and lactose intolerance has also been reported in A. lumbricoides-infected children [58], higher lactose levels in the intestinal contents of infected pigs might boost lactic acid bacteria such as Lactobacillus. Here, LCT is linked to lactose intolerance.