This equates to around 1 in 2,100 individuals (95% credible interval: 1 in 7,400 to 1 in 900), or an estimated 1,500 people in total (credible interval: 400 to 3,500).
Mae hyn yn cyfateb i tua 1 o bob 2,100 o unigolion (cyfwng credadwy o 95%: 1 mewn 7,400 i 1 mewn 900), neu amcangyfrif o 1,500 o bobl i gyd (cyfwng credadwy: 400 i 2,900).