Mae'r GIG hefyd yn ymdrin â llif o bobl ag amrywiaeth o salwch sy'n gysylltiedig â'r gaeaf, gan gynnwys y norofeirws, salwch feirysol, a chyflyrau sy'n ymwneud ag anadlu, y galon a str c. Rydym hefyd yn gwybod bod y ffliw yn lledaenu mewn cymunedau yng Nghymru - mae nifer o achosion o'r ffliw eisoes wedi cael eu cofnodi mewn ysbytai a chartrefi gofal. Mae’n ymddangos bod un straen o'r ffliw sy'n lledaenu yn effeithio'n arbennig ar bobl hŷn sy'n agored i niwed.
The NHS is also dealing with an influx of people with a range of winter illnesses, including norovirus, viral illnesses, respiratory, cardiac and stroke conditions. We also know that flu is circulating in the community in Wales – there have already been a number of significant flu outbreaks reported in hospital and care home settings. One of the flu strains circulating appears to particularly affect elderly and vulnerable people.