Streptococcus pyogenes
The two most common infectious causes of neonatal conjunctivitis are "N. gonorrheae" and "Chlamydia," typically acquired from the birth canal during delivery. However, other different bacteria and viruses can be the cause, including herpes simplex virus (HSV 2), "Staphylococcus aureus", "Streptococcus pyogenes", and "Streptococcus pneumoniae".