Table 3. Approximate Sarcoptes scabiei numbers in skin scrapings collected from trial pigs. ^a .

	Group A				Group B b				Group C				Group D
Week	0	4	8	12	0	4	8	12	0	4	8	12	0	4	8	12
Pig 1 b	-	+	+++	+++	-	+	+++	+++	-	-	-	-	-	-	-	-
Pig 2 b	-	+	+++	+++	-	-	+++	+++	-	-	-	-	-	-	-	-
Pig 3	-	+	+++	+++	-	-	-	++	-	-	-	-	-	-	-	-
Pig 4	-	-	++	+++	-	-	-	+	-	-	-	-	-	-	-	-
Pig 5	-	-	+++	+++	-	+	++	+	-	-	-	-	-	-	-	-
Pig 6	-	+++	+++	+++	-	+	+	+	-	-	-	-	-	-	-	-

^a Mite counts of a 2cm² skin scraping.- = no mites + = <20 mites ++ = 20–100 mites +++ = >100 mites,

^b Pigs 1 & 2 in Group B are referred to as Group B+ in text and figures