APOH and autoimmune polyendocrinopathy: Moreover, various microbial proteins from bacteria such as Haemophilus influenzae [17,228,229,230,], Escherichia coli [229,230,231] and Staphylococcus aureus [229,230,231], and viruses such as cytomegalovirus and tetanus toxoid (TTd) [228], mimic β2GPI, so that a standard animal model of APS has been developed by combining either LPS or one of its standard bacterial sources, M. tuberculosis, with TTd [232,233].