By Luc Olinga Bill Gates is stepping up efforts to eradicate a disease that resurfaced in New York in the summer. Bill Gates rarely gives up in a fight. The billionaire philanthropist had asounded frustrated last summer after what he called “setbacks.” “Several huge global setbacks over the past few years have left many people discouraged and wondering whether the world is destined to get worse,” the co-founder of software giant Microsoft lamented on Twitter on July 13. “The pandemic is one of the biggest setbacks in history. The war on Ukraine is a gigantic tragedy for the entire world. The d…