HLF and infection: However, in intracellular parasites such as T. gondii (the intracellular protozoan causing toxoplasmosis in humans and other mammals; this infection is generally asymptomatic for most adults but can cause severe complications in some individuals, especially women in early pregnancy), hLf was able to inhibit the in vitro replication of the parasite at 100 and 1000 μg/mL in L929 fibroblasts and the Caco 2 cell line, respectively [149].