How was globalization affected human health in the 20th century?

Globalization in the 20th century significantly impacted human health by facilitating the rapid spread of diseases across borders, as seen in pandemics like HIV/AIDS and influenza. It also improved access to medical advancements, healthcare resources, and pharmaceuticals through international trade and collaboration. However, globalization contributed to health disparities, as low-income countries often lacked the infrastructure to benefit from these advancements. Overall, while globalization enhanced certain health outcomes, it also posed challenges that required coordinated global responses.