How was the Black Death connected to travel along the Silk Road?

The Silk Road played a critical role in the transmission of the Black Death across Eurasia during the mid-14th century. While the route historically facilitated the exchange of goods, religion, and culture, the increased connectivity established during the Pax Mongolica created the conditions for the rapid spread of the bubonic plague.123

Under Mongol rule, the revival and stabilization of these trade networks allowed merchants, diplomats, and scholars to travel more freely between East Asia, Central Asia, the Middle East, and Europe. Unfortunately, these same pathways served as conduits for the disease, which moved westward from Asia along the established trade and communication lines. This pandemic illustrates the profound costs associated with the era's unprecedented levels of commercial and cultural exchange, ultimately contributing to the decline of Mongol political authority.2453