Which major pharmaceutical company changed its famous logo from a red cross to a red 'spark of life' symbol in 2009 to avoid confusion with the Red Cross humanitarian organization?

Healthcare branding has evolved significantly over the decades, with certain symbols becoming iconic in the pharmaceutical and medical device industries. Famous logos in medicine often communicate trust, care, and scientific advancement. This trivia question focuses on a well-known medical brand's logo evolution. Test your knowledge of healthcare industry visual identities!

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Johnson & Johnson
Pfizer
Bayer
Novartis