The threat of infectious diseases has been constant in the history of humankind. 75 % of new emerging human infectious diseases in the last thirty years have an animal origin, and 17 % are transmitted by a vector.
Cancer, one of the greatest problems of modern medicine, is also one of the most profound biological mysteries. And there are more than just one type of cancer: cancer has many different origins, development processes, and anatomic and pathological consequences.
Light can be considered from many points of view. Light is essential for the development of life on Earth, has determined animal and plant evolution, and has also a role in many aspects of culture and art.