Where do measles hide in your body?

Measles virus primarily resides in the respiratory tract, where it initially infects epithelial cells. After replication, it spreads to the lymphatic system and bloodstream, leading to systemic infection. The virus can also persist in the body for a time, particularly within the immune system, which can lead to complications and a higher risk of secondary infections. Ultimately, it can affect various organs, leading to the characteristic symptoms of measles.