Yes, its an interesting topic. But I think it can fit in as science: we may have here the first introduction of 'science'. Science was ushered in via 'Medicine', and the lepor depictions in Leviticus is the first separation of 'contagious and infectious' deseases from the occult in all recorded history.
The translation of 'leper' is subjective and approximated. But that there is here the first indications of malignancy, non-antidotal/incurable desease, its identification and treatment, that it is contagious and infectious - says a lot. This is not contradicted by ancient biblespeak of terms such as 'cleansing and purifying': in today's language and understandings, these refer to hygiene, protection, germs and bacteria. Note, the first mandated law for the washing of hands, which kills off 90% of germs, comes from the same source, and medically approved for doctors and hospitals some 300 years ago. The first sanitary laws also come from here.