If a newborn gets pneumonia, it can manifest as coughing, although some newborns may not cough at all, showing only symptoms like spitting white foam. Some may have a mild fever, while others may experience slightly rapid breathing. More severe cases can present with cyanosis of the lips, unhealthy-looking facial complexion, or a bluish purple facial color. These are signs of severe pneumonia. Additionally, there might be a decrease in urine output, poor responsiveness, etc. The symptoms of pneumonia in newborns are relatively less typical than those in older infants and toddlers.