We can’t all do big things to help, but the little things add up too: A 93-year-old veteran in Ohio named John Hobson has been whittling walking sticks . . . selling them for $3 on the side of the road . . . and donating all the money to his local food bank. Genome sequencing is used to track small changes in how the virus mutates, so researchers can track it better. And yesterday, doctors in Australia announced a new method that does it a lot faster. Instead of 24 hours, they can now do it in four. And finally……….