This essential presents infectious diseases of humans and animals that occur or can become endemic in Germany and Europe. These include current threats, African swine fever, avian influenza and COVID-19. In addition, the biology of mosquitoes is described. Globalisation and global warming favour the establishment of new mosquito species that can transmit viruses of the tropics and subtropics, e.g. chikungunya, dengue and West Nile virus. The Schmallenberg virus, which is of veterinary relevance, shows how rapidly new pathogens are spreading in Europe. The content African swine fever Zoonoses: avian influenza, Borna disease and COVID-19 Mosquitoes Arboviruses of animals: Schmallenberg and bluetongue viruses Human arboviruses in Europe: Chikungunya, Dengue and West Nile viruses The target groups Persons with an interest in biological and biomedical topics and infectious diseases The authors Patric U. B. Vogel is a biologist and has worked with a variety of pathogenic bacteria and viruses. Among other things, he has taught a two-year virology/microbiology seminar, released vaccines as a Qualified Person, and is self-employed in the pharmaceutical field. Prof. Dr. Günter A. Schaub is a parasitologist and senior professor at the Ruhr-Universität Bochum. In the case of the Latin American Chagas disease, his research includes the interactions of the pathogen with the vectors as well as the distribution and vector biology of mosquitoes and ticks. This book is a translation of an original German edition. The translation was done with the help of artificial intelligence (machine translation by the service DeepL.com). A subsequent human revision was done primarily in terms of content, so that the book will read stylistically differently from a conventional translation.