Table 1. Demographic and clinical characteristics of patients hospitalized with infectious mononucleosis and of healthy controls.

Sample	Age	Sex	Days from onset	Fever(°C)	VCA IgM(UI/ml)	VCA IgG(UI/ml)	EBNA-1 IgG(UI/ml)	EAIgG(UI/ml)	EBVDNAa
IM-1	18	M	5	38.5	>160	80	neg	115	<185
IM-2	23	F	8	40	>160	126	neg	blb	neg
IM-3	19	F	9	38.5	106	neg	neg	neg	ndc
IM-4	20	F	10	39	>160	146	neg	>150	nd
IM-5	23	F	10	37.5	>160	35	neg	bl	neg
IM-6	32	F	10	38	>160	33	bl	neg	5,725
IM-7	22	F	10	37.5	83	119	neg	104	nd
IM-8	22	F	12	39	>160	195	bl	69	neg
IM-9	23	M	12	39	115	231	neg	>150	1,685
IM-10	23	F	15	38.5	49	21	neg	neg	225
IM-11	21	F	16	38	>160	58	bl	65	<185
IM-12	14	F	17	39	>160	108	neg	>150	180
IM-13	22	F	18	38	Pos	pos	pos	bl	nd
IM-14	27	M	19	38.5	>160	58	neg	54	401
IM-15	19	F	23	38.2	>160	neg	neg	neg	nd
IM-16	40	M	37	39.5	95	neg	neg	neg	neg
IM-17	27	F	55	37.5	>160	345	>600	>150	neg
HD-1	20	F	–	–	Neg	neg	neg	neg	nd
HD-2	21	F	–	–	Neg	neg	neg	neg	nd
HD-3	22	F	–	–	Neg	neg	neg	neg	nd
HD-4	23	F	–	–	Neg	neg	neg	neg	nd
HD-5	23	F	–	–	Neg	neg	neg	neg	nd
HD-6	27	F	–	–	Neg	neg	neg	neg	nd
HD-7	31	F	–	–	Neg	neg	neg	neg	nd
HD-8	31	M	–	–	Neg	neg	neg	neg	nd
HD-9	32	F	–	–	Neg	neg	neg	neg	nd
HD-10	20	M	–	–	Neg	483	157	neg	nd
HD-11	21	M	–	–	Neg	137	246	neg	nd
HD-12	23	F	–	–	Neg	158	48	nd	nd
HD-13	23	F	–	–	Neg	143	142	neg	nd
HD-14	26	M	–	–	Neg	nd	<600	nd	nd
HD-15	28	M	–	–	Neg	81,3	289	neg	nd
HD-16	29	F	–	–	Neg	nd	<600	nd	nd
HD-17	23	F	–	–	Neg	nd	>600	nd	nd
HD-18	23	F	–	–	Neg	nd	>600	nd	nd
HD-19	25	F	–	–	Neg	>750	>600	neg	nd
HD-20	26	M	–	–	Neg	>750	>600	neg	nd
HD-21	29	F	–	–	Neg	>750	>600	neg	nd
HD-22	29	M	–	–	Neg	176	>600	neg	nd
HD-23	35	F	–	–	Neg	neg	>600	neg	nd
HD-24	39	M	–	–	Neg	nd	>600	nd	nd

^adata are expressed as EBNA-1 DNA copies/ml of plasma. Detection limits: 100 copies/ml of plasma;

^bbl, borderline;

^cnot done.