Robert Koch Quote

However, on many occasions, I examined normal blood and normal tissues and there was no possibility of overlooking bacteria or confusing them with granular masses of equal size. I never found organisms. Thus, I conclude that bacteria do not occur in healthy human or animal tissues.

'Investigations of the Etiology of Wound Infections' (1878), Essays of Robert Koch (1987), trans. K. Codell Carter

However, on many occasions, I examined normal blood and normal tissues and there was no possibility of overlooking bacteria or confusing them with...

However, on many occasions, I examined normal blood and normal tissues and there was no possibility of overlooking bacteria or confusing them with...

However, on many occasions, I examined normal blood and normal tissues and there was no possibility of overlooking bacteria or confusing them with...

However, on many occasions, I examined normal blood and normal tissues and there was no possibility of overlooking bacteria or confusing them with...