The free online disease and disorders courses from Alison can help you gain an understanding of the spread and prevention of avoidable ailments. Our classes cover topics such as the Zika virus and its health implications, the history, treatment, and prevention of the Ebola virus, and more. You will also learn different techniques and practices that can help you avoid infectious diseases and assist you in living a healthier life. With disciplined training and knowledge, you can ensure that the health of the present and future generations are safer and more secure.