Chronic granulomatous disease (CGD) is an inherited (genetic) immune system disorder that occurs when a type of white blood cell (phagocyte) that usually helps your body fight infections doesn't work properly. As a result, the phagocytes can't protect your body from bacterial and fungal infections.
The house was built circa 1939. When used in date ranges, a circa is applied before each approximate date, while dates without a circa immediately preceding them are generally assumed to be known with certainty.
As the name suggests, drywall is used to create walls and ceilings inside a house or other structure where it will not be exposed to the elements. In the US, houses older than 1917 will not have drywall unless later remodeling was done. 1917 was when the U.S. Gypsum Company introduced the product to the US market.