How many people lived because of animal testing?

It is difficult to quantify exactly how many lives have been saved due to animal testing, as this process has contributed to numerous medical advancements over the decades. Many vaccines, treatments for diseases, and surgical techniques have been developed and refined through research involving animals. Estimates suggest that millions of lives have been impacted positively by therapies resulting from such research, but the exact number remains uncertain. The ethical debate surrounding animal testing continues, balancing scientific progress with animal welfare considerations.