Trendy long fingernails popularized by celebrities like Cardi B and Billy Eilish, could harbor dozens of species of bacteria and fungi, a biologist warns. Dr Jeffrey Kaplan, a biologist from American University in Washington D.C., says they provide plenty of space for 'micro-organisms to adhere to'.Everyone has bacteria and fungi on their nails, which they pick up daily through touching objects such as ticket and card machines. They are almost always harmless, but when infections do occur swelling, pain and a thickening of the nail may be triggered.
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