Theodosius, xtian thug par excellence, ordered the destruction of the Serapeum in 391. At one time a portion of the Great Library's holdings had been kept there. The Great Library seems to have been burned in the Emperor Aurelian's attack on the city to quash a revolt in the prior century.
Whatever books may have been kept at the Serapeum may or may not have still been there. Ancient sources do not address that aspect of Theodosius' assault on non-xtians.
I am curious as to what "medicine" you think emerged from xtianity? A bunch of superstitious hicks beating themselves to atone or praying to their non-existent god did not give rise to modern medicine. Science did that and science was only freed from the shackles of religious barbarism after the Age of Enligtenment.
Whatever books may have been kept at the Serapeum may or may not have still been there. Ancient sources do not address that aspect of Theodosius' assault on non-xtians.
I am curious as to what "medicine" you think emerged from xtianity? A bunch of superstitious hicks beating themselves to atone or praying to their non-existent god did not give rise to modern medicine. Science did that and science was only freed from the shackles of religious barbarism after the Age of Enligtenment.