- Norovirus warning as nasty winter vomiting bug cases spike across Ireland Dublin Live
- What is norovirus and how contagious is it? The Guardian
- HSE issues urgent warning after vomiting bug sweeps the nation over Christmas period Extra.ie
- Winter vomiting bug warning as nasty norovirus cases spike across Ireland Cork Beo
- What is the “winter vomiting bug” and how it affects the gut Times of India
