by Nina LARSON GENEVA, Switzerland (AFP) — Pfizer chief executive Albert Bourla said Tuesday he understands concerns around the speed at which pharmaceutical companies have produced Covid-19 vaccines, but insisted that no corners had been cut. As Britain on Tuesday became the first Western country to start a mass coronavirus vaccine campaign, using the new Pfizer-BioNTech jab, Bourla said people should feel confident that it is safe and effective. “We didn’t cut any corners,” he […]