N'afọ 1915, onye Bekee na-amụ banyere nje bacteria bụ Frederick W. Twort chọpụtara obere ihe na-ebute ọrịa ma na-egbu nje bacteria, mana ọ gbasoghị okwu ahụ. N'onwe ya, a mara ọkwa nchọpụta nke "a na-adịghị ahụ anya, microbe antagonistic nke dysentery bacillus" nke d'Herelle mere na 3 Septemba 1917.
iche iche nke phages