Table 3. Japanese encephalitis neutralizing antibody and seropositive proportion against P3 strain for participants with two doses of JEV-L in Zhejiang, 2015–2016.

Years since the last dose	No.	P3 GMT (95%CI)	No. of P3 Seropositive	P3 Seropositive proportion(%)
<1	40	23.33 (15.79, 34.46)	28	70.00
1-	49	16.94 (12.4, 23.13)	32	65.31
2-	36	15.48 (11.05, 21.69)	23	63.89
3-	54	11.7 (9.32, 14.69)	30	55.56
4-	40	8.08 (6.29, 10.39)	13	32.50
Total	219	14.01 (12.17, 16.13)	126	57.53