If you find an infant who is not moving and not breathing normally, the correct course of action would be to perform infant CPR (cardiopulmonary resuscitation) immediately and call for emergency medical services (EMS). Follow these steps:
1) Check for responsiveness: Gently tap the infant's foot or shoulder and call out to see if they respond. If there is no response, proceed to the next step.
2) Call for emergency medical services (EMS): Call 911 or your local emergency number and provide your location and a description of the situation.
3) Perform infant CPR: Place the infant on a firm, flat surface and tilt their head back slightly. Place two fingers on the center of the infant's chest, just below the nipple line. Press down about 1 1/2 inches, and then release. Repeat at a rate of about 100 compressions per minute. After 30 compressions, perform two rescue breaths. Cover the infant's nose and mouth with your mouth and blow two quick breaths, watching for the chest to rise. Continue the cycle of 30 compressions and two breaths until EMS arrives or until the infant starts breathing on their own.
It's important to note that infant CPR should only be performed by someone who has been trained in this technique, as it requires specific skills and knowledge to be performed correctly. If you are not trained in infant CPR, stay with the infant, provide comfort and reassurance, and wait for EMS to arrive.