Patients are not included in the study, if only localized pustules are reported, the pustular rash already lasts longer than 3 weeks or a clear alternative diagnosis has been made by a dermatologist.
Typical: Typical morphology as described in the 'clinical features' section of the related publication.
Compatible: Not typical, but not strongly suggestive of other disease.
Insufficient: Lesions can not be judged (mostly because of late stage of the disease or poor quality of pictures).