by AFP Bureaus SANTIAGO, Chile (AFP) — South American nations severely tightened coronavirus travel curbs including shutting their borders with Brazil, where infections are spiralling, as the WHO slammed Europe’s “unacceptably slow” vaccine rollout. Many European Union nations are reeling from dramatic spikes in cases that have forced the reimposition of unpopular restrictions, including in Belgium where police used water cannon to disperse thousands who had gathered in violation of Covid-19 rules. Spikes in South […]