(Image: REUTERS)A third mutant strain of Covid-19 was detected in Brazil this week. The Brazil variant was discovered by Japanese scientists from samples taken from four travellers from the South American country. Below is a guide to the mutant coronavirus strains, explaining everything you need to know and how worried we should be. What is a mutant strain? The UKThe UK's own mutant strain has ripped through the country since it was first detected in September.

Source: Standard Digital January 14, 2021 11:26 UTC