However, Richter et al . examined misidentification of VGS submitted to antimicrobial surveillance programs as pneumococci and found that the distinction of S . pneumoniae from the VGS can be difficult, which is not surprising in light of the fact that S . mitis and S . oralis possess > 99 % sequence homology with S . pneumoniae ( 47 ).
42.
In the worldwide 1918 flu pandemic, " physicians tried everything they knew, everything they had ever heard of, from the ancient art of bleeding patients, to administering oxygen, to developing new vaccines and sera ( chiefly against what we now call " Hemophilus influenzae " a name derived from the fact that it was originally considered the etiological agent and several types of pneumococci ).