If you are a US Citizen under age 70 and purchase a minimum of 3 months of coverage initially, you are covered for an Acute Onset of a Pre-existing Condition.  Coverage available is 10% of the Maximum Overall Limit purchased, up to a maximum of $50,000.  An Acute Onset of a Pre-existing Condition is a sudden and unexpected outbreak or recurrence of a Pre-existing Condition which occurs spontaneously and without advance warning either in the form of Physician recommendations or symptoms.  Treatment must be obtained within 24 hours of the sudden and unexpected outbreak or recurrence.