Porcine Reproductive and Respiratory Syndrome (PRRS) is a viral disease that affects pigs, causing significant economic losses in the swine industry. The virus primarily targets the immune system and reproductive organs, leading to symptoms such as respiratory issues, poor growth, and reproductive failures like abortions and stillbirths. PRRS is caused by the PRRS virus, which can spread through direct contact with infected animals or contaminated equipment. Vaccination and biosecurity measures are essential for controlling the disease and minimizing its impact on pig farms. Early detection and management are crucial for maintaining herd health.