Pathogen research focuses on studying microorganisms, such as bacteria, viruses, fungi, and parasites, that can cause disease in humans, animals, and plants. This research aims to understand how pathogens infect their hosts, evade the immune system, and cause disease, as well as to develop new strategies for prevention, diagnosis, and treatment of infectious diseases. Pathogen research is crucial for public health, agriculture, and veterinary medicine, as it helps to control and prevent the spread of infectious diseases and improve our ability to respond to outbreaks and pandemics.