New variants of SARS-CoV-2 are an unexpected spanner in the works as countries around the world establish their vaccine distribution regimes. These new variants, which may be more contagious from early observations, pose new challenges in the global fight against Covid-19. SARS-CoV-2 variants cause problems for the afflicted countries and present dangers for all countries in the battle against Covid-19.
The United Kingdom variant was first detected in October 2020 from a sample taken the month before. The variant gained notoriety in the international media as cases surged in the UK from October to December. By mid-December, it was estimated that nearly 60 percent of Covid-19 infections in London were caused by the new variant, which the UK viral advisory board concluded was more transmissible than other variants.