A	Confirmed scabies meets at least one of the following criteria:
A1	mites, eggs or faeces on light microscopy of skin samples
A2	mites, eggs or faeces visualised on an individual using a high-powered imaging device
A3	mite visualised on an individual using dermoscopy
B	Clinical scabies meets at least one of the following criteria:
B1	scabies burrows
B2	typical lesions affecting male genitalia
B3	typical lesions in a typical distribution and two history features
C	Suspected scabies meets one of the following criteria:
C1	typical lesions in a typical distribution and one history feature
C2	atypical lesions or atypical distribution and two history features