TABLE 1.

Prevalence of PPV1–7 in tissue samples collected from 2016 to 2020

Yrs	PPV1	PPV2	PPV3	PPV4	PPV5	PPV6	PPV7	Total
2016	1/15 (6.67%)	0/15 (0%)	1/15 (6.67%)	0/15 (0%)	0/15 (0%)	0/15 (0%)	0/15 (0%)	2/15 (13.33%)
2017	12/52 (23.08%)	18/52 (34.62%)	1/52 (1.92%)	2/52 (3.85%)	5/52 (9.62%)	5/52 (9.62%)	9/52 (17.31%)	33/52 (63.46%)
2018	9/43 (20.93%)	15/43 (34.88)	22/43 (51.16%)	1/43 (2.33%)	0/43 (0%)	1/43 (2.33%)	4/43 (9.30%)	30/43 (69.77%)
2019	1/18 (5.56%)	2/18 (11.11%)	1/18 (5.56%)	0/18 (0%)	0/18 (0%)	0/18 (0%)	2/18 (11.11%)	2/18 (11.11%)
2020	47/307 (15.31%)	63/307 (20.52%)	73/307 (23.78%)	16/307 (5.21%)	35/307 (11.40%)	11/307 (3.58%)	52/307 (16.94%)	174/307 (56.68%)
Total	70/435 (16.09%)	98/435 (22.53%)	98/435 (22.53%)	19/435 (4.37%)	40/435 (9.19%)	17/435 (3.91%)	67/435 (15.40%)	241/435 (55.40%)