Antiviral fruits are those that contain high amounts of antioxidants and other compounds that can help fight off viruses. Some examples of such fruits include berries such as cranberries, blueberries, and raspberries, as well as citrus fruits such as oranges, lemons, and grapefruits. These fruits are often rich in vitamins and minerals such as vitamin C, A, E, and zinc, which can help boost the immune system and provide protection against some viruses. Additionally, some fruits such as garlic, onions, and ginger are known to have antiviral properties due to their high content of sulfur-containing compounds, which may be able to help fight off some viruses.