Are animal experiments acceptable? Akshay G, Wilson's School

An arthritis patient lies helplessly on his bed, his mental state slowly deteriorating, dumping him into an endless state of agony. A small flex of his elbow or the lifting of the arm through the shoulder is all it takes to relieve years of suffering, to rehabilitate freedom of movement. Yet he cannot. His immune system attacks the joints, making them echo the pain throughout his body, until it reaches his brain. It forces him to stay still. He cannot take anymore. He has been swallowed by tears