Sticky eyes pretty common in babies, especially if tear duct blocked (usually sorts itself out eventually, but can take months).

Otherwise typical bacteria and viruses eg Haemophilus, HSV, adenovirus.

Concern however, especially if severe, that sexually transmitted infection responsible, and risk to eye.

Neisseria gonococcus

Gonococcus onset 0-5 days after birth. Gram neg diplococci on microscopy is a big clue because nothing else looks like it. Risk of haematogenous spread, especially joint.

Single dose cefotaxime effective!

Chlamydia trachomatis

Chlamydia does not gram stain in conventional way, it is an intracellular pathogen and will not grow on standard culture swabs.

Typically lower respiratory tract signs/symptoms as well.

Blood stained discharge has 100% PPV and specificity for chlamydia in Hong Kong study (n=90)!

Treat with oral erythromycin.