James F. McGrath drills his point home:
The Bible does not contain superior medical knowledge, or indeed anything that we might consider medical knowledge in the modern sense at all, because it was written before there was any medical knowledge, much less advanced medical knowledge. I ask the question anyway to highlight this point for the benefit of young-earth creationists and others who claim that the Bible contains scientific knowledge more advanced than human beings had achieved in the time these texts were composed. If that were so, we should expect them to include other sorts of more advanced knowledge, such as in the realms of medicine, health, and hygiene. Yet you will look in vain in the pages of the Bible for a recommendation that people cover their mouth and nose when they sneeze and cough.
(Hat tip: Adam Lee)