Cigna and Aetna among world’s most ‘valuable’ healthcare brands

International health insurers Aetna and Cigna are among the world’s most valuable healthcare brands, according to research by consultancy Brand Finance. Aetna was ranked third in a league of ten of the world’s most valuable healthcare companies, while Cigna came seventh. Aetna has a brand value of $9.4bn (£7.3bn), a rise of 9% from last…