Keep-at-home orders, border closures, mask-wearing and different measures geared toward stemming Covid-19’s unfold led to the worldwide disappearance of a infamous winter germ. Now, scientists say it is perhaps possible with higher vaccines to rid the world of a second one.For many years, flu epidemics have been pushed by 4 strains. One in every of them, the so-called Yamagata-lineage of sort B influenza, was struggling to compete earlier than the pandemic and hasn’t been seen since March 2020, mentioned Ian Barr, deputy director of the World Well being Group’s Collaborating Middle for Reference and Analysis on Influenza in Melbourne.