Table 3.

Susceptible population by age group, median age of infection, and reported incidence rate (at the time of specimen collection when available) for each country

Country	Age group (yr), % susceptible (seronegative)									Median age of infection	Reported incidence/100 000 population				Source of incidence data
0–9	10–19	20–29	30–39	40–49	50–59	⩾60	<30	⩾30	At time of specimen collection		Over time
Finland	94	95	95	91	83	60	27	94	71	56	2–3	(1997–1998)	0·3–8	(1995–2010)	Lab
Czech Republic	86	84	87	90	63	32	11	85	54	49	3	(2001)	0·7–20	(1990–2010)	Lab
England	90	87	80	64	59	39	24	85	48	49	5	(1996)*	0·6–31	(1991–2009)*	Lab
Germany	n.a.	n.a.	86	77	57	34	14	n.a.	46	47	5	(1998)	1–9	(1991–2010)	Lab + Clin
Belgium	89	81	80	74	52	33	19	84	50	47	2–3	(2002–2003)	1–7	(1990–2010)	Lab
Slovakia	87	84	83	70	47	16	4	85	41	41	14	(2003)	11–40	(1990–2004)	Lab + Clin
Malta	84	79	74	65	33	11	3	79	26	41	n.a.	(2003–2004)	0·5–4	(1991–2000)	Not reported
Italy	86	90	84	51	27	11	3	88	28	35	7–19	(1996–1997)	2–54	(1990–2009)	Lab
Lithuania	82	70	45	n.a.	n.a.	n.a.	n.a.	70	n.a.	n.a.	0·3	(2003)	0·3–1·3	(2003–2010)	Clin
Romania	55	38	19	10	5	3	3	42	6	10	67	(2002)	15–283	(1990–2009)	Clin

Lab, Laboratory confirmed; Clin, clinical notification; n.a., not available.

^*Incidence data for England and Wales combined.