1. www.dailymail.co.uk/health/article-12369429/Now-theres-new-Covid-variant-Health-chiefs-claim-Eris-starting-sweep-UK-amid-spike-cases-blamed-Barbenheimer-bad-weather.html
2. https://theconversation.com/covid-heres-why-cases-have-seen-a-small-spike-this-summer-211019
3. https://assets.publishing.service.gov.uk/government/uploads/system/uploads/attachment_data/file/1176181/Weekly_Flu_and_COVID-19_report_w31.pdf
4. ONS . www.ons.gov.uk/peoplepopulationandcommunity/birthsdeathsandmarriages/deaths/bulletins/deathsregisteredweeklyinenglandandwalesprovisional/28july2023
5. WHO . www.who.int/publications/m