Irish Cancer Society CEO Averil Power said people affected by cancer "need our support now more than ever" during the Covid-19 crisis.
Speaking on RTÉ's Today with Seán O'Rourke, Ms Power said it is important that people who are affected by cancer "know that we haven't forgotten them at this difficult time." She has appealed to people for donations on today's "digital" Daffodil day.
Ms Power said the Irish Cancer Society would normally raise €4m on an average Daffodil day, which she said is a fifth of its annual funding.
She said the charity receives just 3% of its funding from the Government. Ms Power said people who have cancer are some of those most vulnerable to the effects of Covid-19 and so "they need our support now more than ever."