In May of '07 my 5 year old grandson died. He had been in the emergency room 1 1/2 days prior to death and was treated for strep throat, was sent home with antibiotic and tylenol with codiene. He showed some improvement the night before he died. He died in the middle of the night.
It took 9 months for us to received the cause of death from the State Medical Examiner's Office. The cause of death was Airway Obstuction due to Infectious Mononucleosis.
Mononucleosis in small children is very rare.
Hopefully by sharing this information others will be spared that pain that my family has suffered. Even though it is rare for a child of 5 to have mono, you can still be extra dilligent in asking about airway obstruction.