What is the most common bacterial cause of conjunctivitis in young children?

What is the most common bacterial cause of conjunctivitis in young children?

• A. Haemophilus influenzae
• B. Staphylococcus aureus
• C. Streptococcus pneumoniae
• D. Moraxella catarrhalis

Answer: (A)

Non-typeable Haemophilus influenzae is the most common bacterial cause of conjunctivitis in young children. It often lives in the nasopharynx and readily spreads to the conjunctiva, especially in settings where kids are in close contact like daycare. This organism typically produces mucopurulent discharge and eyelid crusting, which are classic signs of bacterial conjunctivitis in kids. While Staphylococcus aureus, Streptococcus pneumoniae, and Moraxella catarrhalis can also cause conjunctivitis, they occur less frequently in this age group, making H. influenzae the leading pathogen in pediatric cases.

Non-typeable Haemophilus influenzae is the most common bacterial cause of conjunctivitis in young children. It often lives in the nasopharynx and readily spreads to the conjunctiva, especially in settings where kids are in close contact like daycare. This organism typically produces mucopurulent discharge and eyelid crusting, which are classic signs of bacterial conjunctivitis in kids. While Staphylococcus aureus, Streptococcus pneumoniae, and Moraxella catarrhalis can also cause conjunctivitis, they occur less frequently in this age group, making H. influenzae the leading pathogen in pediatric cases.