By Entrepreneur Staff As the world continues to grapple with the effects of COVID-19, a small but concerning virus has also started to make headlines: the H5N8 bird flu strain, which killed five swans, three seals, and a fox at an unnamed U.K. wildlife rehabilitation center in late 2020, according to a recent report. The same virus also infected poultry workers in Russia in February of 2021. H5N8 is one of a few rare strains—including H5N1, H7N9 and H5N6—that can make the leap from birds to people. The outbreak at the U.K. facility began when five infected swans were brought in for rehabilitation in October and November of 2020. The birds appeared to be doing well until they rapidly became weak and died between November 25-29, 2020. The swans were isolated in a quarantine unit, as all newly arrived animals are, but the seals and fox were housed in the …