Fig. 3
From: Prevalence and sequence analysis of equid herpesviruses from the respiratory tract of Polish horses
Viral DNA load of equid herpesvirus-2 (EHV-2) and EHV-5 in swabs from all Arabian horses tested (n = 101, a and d), Arabian foals (n = 39, b and e) and Arabian yearlings (n = 28, c and f), stratified by disease status. The middle line in each box represents median, whiskers represent minimum and maximum values, with means indicated by ‘+’. The number of virus-positive horses in each category is shown above each box