I have found this course very interesting and informative and would recommend it to anyone interested in how diseases are identified, recorded for research by scientist. It provides lots of data and an explanation of how epidemiologist work to find answers on how to deal with diseases. Such as smoking and lung cancer, diabetes and diarrhoea. If you are sitting at home during the current pandemic, spend some time looking at the courses currently being run by Future Learn. I am sure you will find it interesting and help you to understand some of the things being discussed about Coronavirus. The courses that I have done have been free, but if you want a certificate the courses can be paid for with certification at the end.