Porcine Reproductive and Respiratory Syndrome Virus (PRRSV) is a virus that primarily affects pigs, causing significant reproductive and respiratory issues. It leads to symptoms such as fever, coughing, and difficulty breathing in infected animals. The virus can also cause reproductive failures, including stillbirths and low birth weights in piglets. PRRSV is classified into two main types: Type 1 and Type 2. It spreads easily through direct contact with infected pigs or contaminated materials. Control measures include vaccination, biosecurity practices, and monitoring herd health to minimize the impact of the virus on pig farming operations.