S4, E4: Tony gets a shock when he finds Jeannie holding a baby. Then he learns she is minding Abdullah, her infant nephew, while his parents are on a belated honeymoon. Jeannie leaves to take over her brother's duties and Tony is left with the baby. To cover up, Roger tells Dr. Bellows a cold is keeping Tony at home. Hearing Roger's description of the symptoms, Bellows is sure Tony has developed Patagonian flu and rushes to examine him. Tony really feels sick when the doctor orders him into the hospital for observations. Roger takes over the care of Abdullah. Sally, one of Roger's girl friends, thinks the baby is his, and slaps him. Trying frantically to get out of the hospital, Tony mimics Dr. Bellows on the phone and orders his own release. He is about to escape when Roger arrives with the baby. Tony and Roger unwittingly take refuge in the maternity ward. When Frank Carson comes to visit his expectant wife, Tony hides ones the bedclothes and is soon on his way to the delivery room. Dr. Bellows is sure he's delirious. Later, Jeannie tells Tony the baby is back with its parents. Then Dr. Bellows reports that Tony has Persian flu, the first case in 2000 years. A nod from Jeannie confirms Tony's suspicions that he caught it from Abdullah.