Viral resistance refers to the ability of an organism, such as a plant or animal, to defend itself against viral infections. This can occur through various mechanisms, including the production of specific proteins that inhibit viral replication or the activation of immune responses that target and eliminate the virus. In agriculture, developing crops with viral resistance is crucial for maintaining food security. Scientists often use techniques like genetic engineering or selective breeding to enhance the natural resistance of plants to specific viruses, helping to reduce crop losses and ensure healthier harvests.