An alpaca is presented in poor body condition with an unkempt coat, patchy alopecia and severe pruritus and crusting of the extremities.What is the most appropriate diagnostic step?
A- Test skin crusts for contagious ecthyma parapoxviruses
B - Check thyroid status and bluetongue titers
C - Punch biopsy
D - Skin scraping and microscopic exam
answer / D
