To better understand and interpret the epidemiology of the virus in Wales, the UK and in a global context, including risk factors around demographics, geographies and vulnerable groups (e.g. age).
Deall a dehongli epidemioleg y feirws yng Nghymru, yn y DU ac mewn cyd-destun byd-eang yn well, gan gynnwys ffactorau risg sy'n ymwneud â demograffeg, daearyddiaeth a grwpiau agored i niwed (e.e.