CreatedBy 
Definition  Information about the user that created the row. This will typically be the UserID (IDCode from CV3User table) and may be prefixed with an environment identifier followed by an underscore, e.g. b96d2bf5_jongmore. 

CreatedWhenUTC 
Definition  The date and time that the row was created including the time zone offset from UTC, for example 2015-01-30 04:55:04.372 -05:00. The date and time is based on the Enterprise Time Zone. 

ImmunizationQueryStatusHistoryId 
Definition  Primary Key 

ImmunizationQueryID 
Definition  Foreign key to parent immunzation query 

StatusType 
Definition  Status of the immunization Query 

UserGUID 
Definition  user who initiated the status change 

MSReplrowguid 
Definition  Unique GUID used to support merge replication.