Neonatal pneumonia is more common and presents clinically with fever, cough, and sometimes dyspnea. Pathogens that cause neonatal pneumonia include group B streptococcus, gram-negative enteric bacteria, and cytomegalovirus. 1. Group B Streptococcus: Early-onset group B streptococcal infections account for about 80% of group B streptococcal infections in newborns, often characterized clinically by pneumonia, sepsis, or meningitis, with symptoms appearing most often within 12 to 24 hours after birth. Pneumonia is the early symptom, and the condition is usually severe, with lesions involving both lungs and diffuse foci of infection. 2. Gram-negative enteric bacteria: often caused by nosocomial infections and often detected after the first week of life. 3. Cytomegalovirus: Pneumonia is one aspect of systemic cytomegalovirus infection, and other signs of congenital infection are usually present. Neonatal pneumonia is a common respiratory disease. If you find that your newborn has fever, cough and difficulty in breathing, you should go to the hospital in time for treatment under the guidance of your doctor.