Germaphobe' Celebrity Renee Zellweger has ground rules for home visitors

fact she has become such a “germaphobe” that she reportedly does not allow her guests enter her New York home without their feet fully covered.

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Renee believes that shoes are frequently contaminated with dirt and dangerous bacteria. Her friends think it''s a bit over the top, but they always end up having a laugh when they go sliding around on her slippery floors!" Contactmusic quoted a source as saying.

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However, the ‘Bridget Jones’ Diary’ star is not the only celebrity to be terrified of germs.

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Even Jennifer Lopez had become conscious of maintaining high standards of hygiene for her 17-month-old twins Max and Emme with husband Marc Anthony.

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She rather went a step further, making guests use antiseptic hand lotion and wear surgical masks before they entered the nursery.

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She is also paranoid about hygiene. The twins'' wing is totally sterile and all flowers and presents are stored in a separate area so they don''t contaminate the babies'' area."