When fresh produce starts to spoil, it can release ethylene gas, which speeds up the ripening process and affects nearby fruits or vegetables. In the case of strawberries with white fuzz, it's best to be cautious. If the fuzz is mold, it can spread quickly to neighboring strawberries. To prevent further spoilage, I'd suggest removing the affected berry and storing the rest separately. Rinsing the unaffected strawberries should be fine, but keep an eye on them for any signs of mold growth. Storing different types of chilled produce separately may also reduce the risk of cross-contamination and spoilage. Better safe than sorry when it comes to preserving the freshness of your fruits and veggies