In terms of sustaining human life, infectious diseases pose a persistent threat to public health, challenging our resilience and adaptability. In this final week, we will explore the realm of infectious diseases, from understanding their causative agents to unraveling the mechanisms of disease transmission and control. By delving into the discoveries of pioneers like Robert Koch, examining landmark events in disease control, and confronting the global challenges posed by pandemics, we strive to equip ourselves with knowledge and strategies to prevent the spread of infectious diseases and safeguard the health of individuals and communities worldwide.