Has VZV epidemiology changed in Italy? Results of a seroprevalence study

Figures & data

Table 1. Estimated number of sera to collect per age-group.

Age group (years)	Age Bands	Expected seroprevalence	Precision of estimate	Sample size	Total sample size
0–19	1 y age bands	53%	10%	96 per 1 y interval	1920
20–39	5 y age bands	91%	4%	197 per 5 y interval	788
>40	10 y age bands	98%	2%	189 per 10 y interval	567

Figure 1. VZV seroprevalence stratified by age class and geographical area, Italy 2013–2014.

Figure 2. VZV seroprevalence in Italy, 2013–2014. Comparison between “pilot” vs “not pilot” Regions.

Figure 3. Comparison between VZV seroprevalence stratified by age class, Italy 1996–1997, 2003–2004 and 2013–2014.