Transfer factor factors are contraindicated for women who are pregnant or breastfeeding. When human- and bovine-derived transfer factor are generated from blood cells they carry the potential for blood-borne disease such as HIV/AIDS and Hepatitis C. Colostrum is a form of milk produced by the mammary glands of mammals (including humans) in late pregnancy. Colostrum also contains multiple immune modulating molecules, including high antibody levels. Based on studies noting an overlap in the observed in vitro effects between a molecule contained in colostrum called colostrinin and the dialyzable leukocyte extract mentioned above, a hypothesis formed that the two were the same. There
Polar form of the Dirac equation formula_11 vanish simultaneously, the spinor field is called regular, and in this case it is always possible to find a local frame in which the regular spinor field acquire the form up to a transformation of the type formula_15 and up to the reversal of the third axis. Therefore, a regular spinor can, in general, be written according to where formula_17 is called module and formula_18 is called Yvon-Takabayashi angle, and where formula_19 is the generic complex representations of the Lorentz transformation that is needed to obtain the generic spinor in its most reduced form as is written above. When