TABLE 2.

Determination of EBV infection stage using the Architect EBV antibody panel

Infection stage	Results by antibody typea
	VCA IgM	VCA IgG	EBNA-1 IgG
Seronegative	Neg	Neg	Neg/Equ
Primary infection	Pos/Equ	Pos/Equ	Neg/Equ
Past infection	Neg/Equ	Pos/Equ	Pos
Suspected primary infectionb	Pos/Equ	Neg	Neg/Equ
Transient infectionb	Pos	Pos/Equ	Pos
Isolated VCA IgGb	Neg	Pos/Equ	Neg/Equ
Isolated EBNA-1 IgGb	Neg	Neg	Pos
Unresolvedb	Pos	Neg	Pos

^aNeg, negative; Equ, equivocal; Pos, positive.

^bInconclusive serological patterns.