The announcement in late April that Guinea-Bissau’s prime minister, Nuno Gomes Nabiam, and four other senior government officials had tested positive for the coronavirus was just the latest crisis for the fragile West African state. Guinea-Bissau has experienced four coups—the most recent one in 2012—and 16 attempted coups since it gained independence from Portugal in 1974. More recently, the country has been mired in instability since a disputed second-round presidential election last December. The National Electoral Commission has declared that Umaro Sissoco Embalo, a retired military officer and former prime minister, won that poll with 53.6 percent of the vote. […]