Which pharmaceutical company underwent a major rebranding in 2009, changing its logo from a tree with a snake (symbolizing the Rod of Asclepius) to a more modern red emblem representing life and wellbeing?

The pharmaceutical industry has seen many iconic logos and rebranding efforts as companies evolve to meet changing healthcare needs. Some visual identities have become instantly recognizable symbols of innovation and trust in medicine. This trivia question tests your knowledge of a major pharmaceutical company's visual brand history and the strategic thinking behind one of its most significant logo redesigns.

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Pfizer
Novartis
Bayer
Merck