https://metro.co.uk/2021/02/28/more-than-20000000-brits-receive-first-covid-vaccine-14160120/
https://www.mirror.co.uk/news/uk-news/breaking-more-20-million-people-23580516
https://www.rte.ie/news/2021/0228/1199885-uk-vaccine-covid/
https://www.liverpoolecho.co.uk/news/liverpool-news/woman-shares-list-coronavirus-symptoms-19915973
https://www.dailymail.co.uk/news/article-9309543/Is-Covid-winter-Cases-fall-FIFTH-6-035-deaths-plummet-141.html
https://amp.theguardian.com/society/2021/feb/28/20-million-britons-have-had-first-dose-of-coronavirus-vaccine
https://www.sciencealert.com/scientists-identify-140-000-virus-species-in-the-human-gut-and-most-are-unknown
https://www.thetimes.co.uk/article/hancock-hails-20-million-vaccine-milestone-as-step-back-towards-normal-life-db8lw980g
https://www.dailymail.co.uk/news/article-9309763/Foetus-dies-coronavirus-womb-mother-admitted-hospital.html