Table 3A.
Characteristics of the thirteen eligible studies on domestic pigs included in a meta-analysis for estimating seroprevalence of Toxoplasma gondii in the Nordic-Baltic region.
| Authors | Year of publication | Country | Study period | Sample type | Serological method | Seh | Spi | Total no. of pigs ≤1 year of age (no. of seropositives) | Total no. of pigs >1 year of age (no. of seropositives) | Total no. of pigs of unknown age (no. of seropositives) | Apparent seroprevalence (%) |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Lind et al., 1994 | 1994 | Denmark | 1992–1993 | Serum | ELISAa | 0.94 | 0.92 | n.r. | n.r. | 4016 (124) | 3.1 |
| Lind et al., 1994 | 1994 | Denmark | 1992–1993 | Serum | ELISAa | 0.94 | 0.92 | 443 (26) | 364 (70) | 0 | 11.9 |
| Skjerve et al., 1996 | 1996 | Norway | 1993–1994 | Serum | ELISAa | n.r. | n.r. | n.r | n.r | 1605 (42) | 2.6 |
| Eglīte and Keidans, 2000 | 2000 | Latvia | 1993–1998 | Serum | CFb | n.r. | n.r. | n.r | n.r | 265 (13) | 4.9 |
| Eglīte and Keidans, 2000 | 2000 | Latvia | 1998–2000 | Serum | LAc | n.r. | n.r. | n.r | n.r | 115 (35) | 30.4 |
| Lundén et al., 2002 | 2002 | Sweden | 1999–1999 | Meat juice | ELISAa | 0.94 | 0.92 | 695 (23) | 110 (19) | 2 (0) | 5.2 |
| Deksne, 2010 | 2010 | Latvia | 2010–2010 | Meat juice | ELISAa | n.r. | n.r. | 232 (16) | 0 | 0 | 6.9 |
| Deksne and Kirjušina, 2013 | 2013 | Latvia | 2010–2011 | Meat juice | ELISAa | n.r. | n.r. | n.r | n.r | 803 (34) | 4.2 |
| Felin et al., 2015 | 2015 | Finland | 2012–2013 | Meat juice | ELISAd | 0.99 | 0.93 | 425 (8) | 928 (35) | 0 | 3.2 |
| Wallander et al., 2016 | 2016 | Sweden | 2011–2011 | Meat juice | ELISAe | 1.00 | 0.98 | 975 (55) | 0 | 0 | 5.7 |
| Kofoed et al., 2017 | 2017 | Denmark | 2016–2016 | Serum | ELISAa | 0.76 | 0.94 | 165 (8) | 89 (30) | 0 | 15.0 |
| Santoro et al., 2017 | 2017 | Estonia | 2012–2012 | Serum | DATf | n.r. | n.r. | 72 (2) | 239 (19) | 71 (1) | 5.8 |
| Felin et al., 2019 | 2019 | Finland | 2012–2014 | Serum | ELISAg | 1.00 | 1.00 | 1116 (8) | 0 | 0 | 1.0 |
n.r. = not reported. a = In-house enzyme linked immunosorbent assay (ELISA). b = Unspecified commercial complement fixation test (CF). c = Latex agglutination test (LA). d = Commercial ELISA, Prio-CHECK Toxoplasma Ab Porcine test (Prionics AG,Schlieren-Zurich, Switzerland). e = Commercial ELISA, ID Screen Toxoplasmosis Indirect Multi-species IDvet Innovative Diagnostics Montpellier France). f = Commercial modified direct agglutination test (DAT), Toxo-Screen DA bioMérieux, Marcy-l'Étoile France [Cut-off, dilution of 1:40]. g = Commercial ELISA, pigtype® Toxoplasma Ab Qiagen Leipzig Germany. h = Se, sensitivity. i = Sp, specificity.