Sanofi SA increased sales by 1.1% to €9.5 billion in third quarter, supported by strong growth of the immunology drug Dupixent and medicines for rare diseases. But vaccines, the company’s third largest business unit, were held back by the late delivery of influenza product to the US. The company’s operating profit of €2.13 billion was down by 21.4% after taking into account restructuring and amortisations, as well as impairment charges.