Table 5.: Number of Strains Associated with Each 50% Lethal Dose Interval. These Values Presented are as Percentages

LD50 Assay
Group LD50 > 1010 LD50 = 109 - 107 LD50 = 106 - 105
N 100.0 0.0 0.0
S 41.7 45.8 12.5
H 0.0 100.0 0.0
O 100.0 0.0 0.0

N = commensal strains (AFEC), S = septicemia strains, H = swollen head syndrome strains, O = omphalitis strains.

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