Table 2. Laboratory tests before administration of immunosuppressive or immunomodulating drugs [1].

Infectious agents	Test
Hepatitis B virus	– anti-HBS quantified – HBs Antigen, anti-HBs and – anti-HBc
Hepatitis C virus	(anti-Hepatitis C)
Hepatitis A virus	(anti-HAV IgG)
Epstein-Barr virus	anti-EBV
Cytomegalovirus	anti-CMV IgG and IgM
Herpes virus	anti-HSV q and 2: IgG and IgM
Varicella zoster virus	Anti-VZ IgG
Syphilis	VDRL or TPPA