Pediatrics Most likely etiology in 10 month old child with high grade fever since 7 days, with the following x-ray finding and not responding to ceftriaxone A Streptococcus pneumoniae B Staphylococcus aureus C Mycoplasma D Respiratory Syncytial Virus 💡 Explanation Most likely etiology in 10 month old child with high grade fever since 7 days, with the following x-ray finding and not responding to ceftriaxone ✓ Correct Answer: B. Staphylococcus aureus