by Julie CHARPENTRAT PARIS, France (AFP) — The coronavirus SARS-CoV-2 has scorched its way across the world killing millions and bringing economies to a standstill. But where exactly did it come from? With few clear answers, speculation has persisted since the beginning of the pandemic, spawning misinformation and conspiracy theories as well as sharp diplomatic tensions. Here is a look at leads scientists are following — and others they have rejected — in trying to […]