Final answer:
The symptoms described suggest that the infant may have Pertussis, also known as whooping cough, which is caused by the bacterium Bordetella pertussis.
Step-by-step explanation:
The symptoms described, including cough, runny nose, and respiratory distress with a "whoop" sound during inhalation, are indicative of Pertussis, also known as whooping cough. Pertussis is caused by the gram-negative coccobacillus Bordetella pertussis and is highly communicable through droplet transmission.