Learn how to get rid of head lice. Head lice attach themselves to the scalp and feed off of human blood. Discover head lice symptoms, including the presence of lice eggs, and learn what head lice look like and effective head lice treatment.
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Pfizer no longer owns stock in Zoetis; Zoetis joins S&P 500. KALAMAZOO, MI â Zoetis Inc. is a fully independent company after Pfizer Inc., which had owned more than 80 percent of the company, exchanged all of its stock in the animal health company.