question #3 Sahih al-Bukhari 5717, Book 76, Hadith 34 : What lesson can be learned from the interaction between the Prophet and the bedouin regarding disease transmission?

Allah’s Messenger (ﷺ) said, ‘There is no ‘Adwa (no disease is conveyed from the sick to the healthy without
Allah’s permission), nor Safar, nor Hama.” A bedouin stood up and said, “Then what about my
camels? They are like deer on the sand, but when a mangy camel comes and mixes with them, they all
get infected with mangy.” The Prophet (ﷺ) said, “Then who conveyed the (mange) disease to the first
one?”