Fig. 1From: Occurrence of canine parvovirus in dogs from Henan province of China in 2009–2014Annual distribution of morbidity of CPV infection. The morbidity rates were 51/633, 142/2291, 215/3242, 322/7746, 333/4629 and 106/1366 for 2009–2014, respectively. There was no significant difference in morbidity rates between 2009 and 2014 (P > 0.05, χ2 test)Back to article page