During World War I Fleming continued his investigations into antibacterial substances. Testing the nasal mucus from a patient with a heavy cold, he found that it had an inhibitory effect on bacterial growth. This was the first recorded discovery of lysozyme, an enzyme present in many secretions including: tears, saliva, skin, hair, nails and mucus. Unfortunately, the enzyme was only effective against small counts of harmless bacteria, and therefore had little therapeutic potential. (28 jul 1914 ano – 11 nov 1918 ano)
Adicionado na linha do tempo:
Data:
28 jul 1914 ano
11 nov 1918 ano
~ 4 years and 3 months
