Possible Clues:

• Hansen's disease
• Reason to be shunned, in the Bible
• Vacant latrine flushed after pee -- it's a condition
• The French get commonplace disease
• Reply so (anag.)
• The French get soft with ruddy type in old colony
• Experts in line revealing illness
• Tropical disease
• Disease affecting skin and nerves
• That's more than a dull affliction for the French