EDDD is a project specific dataset for specific COVID-19 related projects only. Administrative and clinical information for all NHS Wales Accident and Emergency department attendances are available from the EDDS dataset. The data covers administrative and clinical information for all NHS Wales Accident and Emergency department attendances. This is in contrast to EDDS data which are not daily extracts. Includes the All Wales Injury Surveillance Systems (AWISS) dataset. Data recording practices may vary, especially in some of the minor A&E and Minor Injury Units which could account for some local differences.