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Table 2 Epidermal changes and their severity at 3 and 24 hpi

From: The effect of Psoroptes ovis infestation on ovine epidermal barrier function

Time Epidermal pathology Severity
  Mild Moderate Severe
3 hpi Pustule formation 1 case 2 cases 0 cases
Loss of architecture 6 cases 1 case 0 cases
Loss of basement membrane 1 case 1 case 7 cases
24 hpi Pustule formation 0 cases 2 cases 7 cases
Loss of architecture 1 case 1 case 7 cases
Loss of basement membrane 1 case 3 cases 3 cases
  1. Results of epidermal changes of 9 sheep at 3 and 24 hours post-infestation (hpi) with P. ovis. The severity of epidermal changes was classified as mild (< 1/3 of the epidermis affected), moderate (1/3-2/3 of the epidermis affected) and severe (> 2/3 of the epidermis affected).