Adapted Hudson and Turner Score:
Serological response (CFT) to challenge
< 10	Score 0
10	Score 1
20–80	Score 2
= or > 160	Score 3
Clinical response to challenge
Pyrexia at least (≥) 39.5 °C for > 3 but < 7 days	Score 1
Pyrexia for ≥7 days	Score 2
Animal died/euthanased	Score 3
Post-mortem findings
Chronic lesions (sequestra)	Score 1
Acute/subacute (marbling etc.)	Score 2
Mmm isolated or detected	Score 2
Multiply the sum by a factor depending on lesion size:
< 5 cm	Score 1
≥ 5 cm but < 20 cm	Score 2
≥20	Score 3
Thus, maximum possible score is 18:
Serology	= maximum possible score is 3
Clinical	= maximum possible score is 3
PM	= (2 + 2) 3 = 12