Neonatal infection refers to infections that occur in newborns, typically within the first 28 days of life. These infections can be caused by bacteria, viruses, or fungi and may arise during pregnancy, delivery, or after birth. Common types include sepsis, pneumonia, and meningitis. Symptoms can vary but often include fever, difficulty feeding, and lethargy. Early diagnosis and treatment are crucial for improving outcomes in affected infants. Healthcare providers may use blood tests, imaging, and other diagnostic tools to identify the infection. Treatment often involves antibiotics or antiviral medications, depending on the cause of the infection.