Animal research has been important in the development of many major medical advances. Millions of lives were saved as a result.
For example, asthma inhalers were developed after work on guinea pigs and frogs. One in 10 children currently receives asthma treatment. Similarly, heart and kidney transplant techniques, plus vital anti-rejection medication, were developed using animals. In 2009–2010, 3,700 people received major organ transplants.
Another example of human benefit from animal research is polio. As a result of the acquisition of information and the development of techniques achieved through the use of animals, poliomyelitis is no longer a major threat to health in the United States. The number of paralytic polio cases in the United States has declined as a result of vaccinations from 58,000 in 1952 to only 4 in 1984.
These examples are enough to claim that animal experimentation greatly contributes to the advancement of science and, therefore, benefits humans.