What is the rare condition known as Type 1.5 diabetes?

USA TODAY - For more and to sign up click here Rob Taub When someone is diagnosed with diabetes, it's usually pretty simple which one they have — Type 1 or Type 2. The rate of diabetes has grown worldwide, having surpassed 800 million people a year ago. By 2050, that number is expected to increase to over 853 million. What some might not realize is that those rising numbers can also be attributed to another rare…