Non-refundable ticket changes will cost you. As of 2013, Delta charges $150 for changes to domestic tickets and $250 for international tickets. If you booked your Delta flight through a travel agent or an online agency, you will be charged an additional $50 to make any changes to your ticket.
In the U.S., approximately 3.3 million people have OCD, of which you have 0.3 to 1% of pediatric population and 2% of adult population. So about 1 out of 200 adults have OCD and twice as many have had OCD at 1 point or another in their life.
Close to 3 per cent of people in Australia experience OCD in their lifetime and approximately 2 per cent in a 12 month period.1. OCD can occur at any time during your life and children as young as six or seven may have symptoms, although symptoms seem to develop fully for the first time in adolescence. What causes OCD? OCD is thought to develop from a combination of genetic and environmental factors. A number of factors may increase the risk of developing OCD, including family history, social factors and psychological factors. Other factors specific to OCD include: 1  Biological factors â OCD has been linked to several neurological factors and irregular levels of serotonin (a chemical that transmits messages between brain cells) in particular. Research into chemical, structural and functional changes or abnormalities in the brain continues.