Types of sample Types of sample Types of sample Types of sample Types of sample Types of sample Types of sample Types of sample Prevalence at sample level Prevalence at farm level
Periods Group of pigs† Internal organs Serum Fetus Feces Semen Oral fluid Colostrum Umbilical cord Positive rate per year Positive rate per year
Jan-Apr 2019 Sucking 4/5 - - 4/4 - - - - 188/365 (51.5%) 62/81 (76.5%)
Nursery 24/29 11/31 - - - - - -
Fattening 16/16 2/12 - - - - - -
Breeder 2/2 11/31 15/17 - 0/6 - - -
May-Aug 2019 Sucking 4/5 0/7 - 0/3 - - - -
Nursery 30/34 10/61 - 0/1 - - - -
Fattening 9/9 1/9 - 0/1 - - - -
Breeder 0/2 3/15 6/13 1/1 1/4 - - -
Sep-Dec 2019 Sucking 2/3 - 1/1 - - - - -
Nursery 12/12 3/6 - - - - - -
Fattening 3/3 12/17 - - - - - -
Breeder - 0/2 1/3 - - - -
Jan-Apr 2020 Sucking 0/2 0/2 - - - - - - 208/369 (56.4%) 66/74 (89.2%)
Nursery 17/17 7/10 - 0/2 - - - -
Fattening - 3/3 - - - - - -
Breeder - 1/8 8/10 - 1/4 - - -
May-Aug 2020 Sucking 3/6 2/2 - 0/1 - - - 2/2
Nursery 13/13 9/19 - 1/1 - - - -
Fattening 12/13 10/12 - - - - - -
Breeder 0/1 5/9 9/18 - 0/4 2/2 -
Sep-Dec 2020 Sucking - 0/9 - - - - -
Nursery 8/13 7/24 - 0/1 - 0/2 - -
Fattening 2/2 77/117 - - - - - -
Breeder 0/1 4/21 5/14 - 0/4 - - -
Jan 2019-Dec 2020 Jan 2019-Dec 2020 161/188 (85.6%) 178/427 (41.7%) 45/76 (59.2%) 6/15 (40%) 2/22 (9.1%) 0/2 (0%) 2/2 (100%) 2/2 (100%) 396/734 (54%) 118/145 (81.4%)††