Today we can say that we are entering into a new phase of the COVID-19 pandemic, with many of the countries that have been worst affected by the virus - such as the United Kingdom (UK) - having vaccinated enough of their vulnerable patients and health staff to avoid the worst of the pressure on their health systems, even though the virus continues to widely circulate. With more than a billion vaccines made a month, there should theoretically be enough for everyone.There is, however,