"At UCLH, we have seen first-hand the terrible toll on individuals and families that Covid-19 can bring." Over 18m people have received at least one dose of a coronavirus vaccine in England in the past four months, but the uptake is being affected by vaccine hesitancy in some quarters. Since the first cases were reported last year, conspiracy theories began circulating, which included myths about the virus being a secret ploy by pharmaceutical companies to sell a vaccine and suggesting business magnate Bill Gates was creating a tracking device to be implanted in a vaccine. Reticence to be vaccinated hasn't been helped by the fact that some countries, including Demark, Norway and Iceland, have halted the use of the Oxford/AstraZeneca jabs amid fears they cause blood clots - although Europe's own medical regulator, the European Medicines Agency, has said there is no clear link.