Table 2.
Results of the cross-sectional serosurveys carried out in magpies in 2018 and early 2019 for the detection of WNV infection.
| Month | Tested | cELISA Positive | Seroprevalence Flavivirus (%) | WNV SNT Positive | WNV SNT Titers | Seroprevalence WNV (%) |
|---|---|---|---|---|---|---|
| April 2018 | 24 | 20 | 83 | 4 | 10–60 | 17 |
| May 2018 | 29 | 24 | 83 | 4 | 10 | 14 |
| June 2018 | 26 | 15 | 58 | 3 * | 10–40 | 12 |
| July 2018 | 12 | 8 | 67 | 2 | 20 ‡ | 17 |
| March 2019 | 26 | 10 | 38 | 2 | 40 † | 8 |
| April 2019 | 9 | 4 | 44 | 4 | 10–40 †† | 44 |
* Besides the three animals positive for WNV by SNT, there was one animal positive for Bagaza virus (BAGV) by SNT (titer 30). ‡ One age-category three magpie (i.e., born in 2018). † One age-category five magpie (i.e., born in 2018). †† All four age-category five magpie (i.e., born in 2018).