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Table 2 Summary of ELISA scores sorted by country of origin

From: Serological evidence for historical and present-day exposure of North American bison to Mycoplasma bovis

ELISA score No. (%) of sera collected in the country indicated Total no. (%)a
United Statesa Canadaa
0 (Negative) 1475 (92.9) 1593 (93.3) 3068 (93.1)
1+ (Weakly positive) 65 (4.1) 61 (3.6) 126 (3.8)
2+/3+ (Moderately positive) 32 (2.0) 41 (2.4) 73 (2.2)
4+/5+ (Strongly positive) 15 (0.9) 13 (0.8) 28 (0.8)
Total 1587 1708 3295
  1. aAs a result of rounding individual percentages to the nearest tenth, the sum of all percentages does not equal 100