Ancient Wisdom on Surgery and Hygiene

In the Talmud (Bava Metzia 83b), there is a fascinating account of a surgery performed on Rabbi Elazar, the son of Rabbi Shimon bar Yochai: 'They gave him a sleep-inducing drug and brought him into a room entirely made of clean marble, then they opened his abdomen...' The decision to perform the surgery in a marble room free of dust and contaminants highlights an ancient understanding of the importance of maximum sterilization during medical procedures.

Who Really Invented Pasteurization? Furthermore, it seems that even the basic principle behind 'pasteurization'—destroying harmful bacteria with heat—was recognized by the sages of the Talmud. In Bava Metzia 29b, the sages underline the significance of drinking liquids that have been boiled, famously stating: 'Better to drink a cup of spells than a cup of unboiled liquids.'

The Talmud continues with insights that even modern science hadn't yet uncovered at that time: 'This only applies to metal vessels, but clay vessels are not a concern. And with metal vessels, it is only when they haven't been boiled; but if they have been boiled, even if cooled, there is no concern. This applies unless no plant leaves or spices were added, but if they were added, there is no concern.'

In conclusion, the sages of Jewish tradition knew from the Torah that: a) There are tiny creatures in nature, invisible to the naked eye; b) These creatures (later known as bacteria) can spread diseases; c) Bacteria are present in all parts of a sick person’s body and secretions, including saliva; d) Therefore, caution is advised against sharing drinking cups to prevent transmission; e) Even if the first person drinking is healthy, they might carry dormant bacteria that could become active in someone else; f) Metal objects can harbor dangerous bacteria, and one should observe Shabbat prohibitions even for non-life-threatening wounds caused by metal—assuming a deep cut prone to bacterial infection, such as tetanus, not a superficial scratch; g) Surgeries should be conducted with utmost sterility; h) Bacteria can be destroyed by heating liquids containing them.