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Table 1 Serological results of 3885 dog serum samples from Sweden tested for the presence of circulating antigens of Angiostrongylus vasorum and of specific antibodies to A. vasorum

From: Canine angiostrongylosis in Sweden: a nationwide seroepidemiological survey by enzyme-linked immunosorbent assays and a summary of five-year diagnostic activity (2011–2015)

  Positive samples (n) % 95% confidence intervals
Antibody-positive 38 0.98 0.69–1.34
Antibody-positive only 34 0.88 0.61–1.22
Antigen positive 24 0.62 0.40–0.92
Antigen positive only 20 0.51 0.31–0.79
Antibody and antigen positive 4 0.10 0.03–0.26