Iceland is the most sparsely-populated country in Europe, with a population of 364,134 spread across 40,000 square miles (103,000 square kilometers). But the New Yorker notes Iceland has “virtually eliminated” Covid-19 cases — and tries to explore how they did it. By February 28th, Iceland had already implemented a contact-tracing team. “And then, two hours later, we got the call,” remembers…