How can newborn have symptoms of pneumonia?

Germ entry, inhaled: An infants transition to air breathing is marked by exposure to some interesting risks. When the bag of waters opens, germs from the moms anus & genitals can travel up & into that fluid & begin to grow. If labor is long, they may get into the mouth or lungs, or enter the lungs with the first breath. If baby passes poo before birth, it can enter the lungs the same way. All can trigger pneumonia.