Infectious diseases are brought about by creatures — for example, bacteria, viruses, fungi or parasites. They're typically innocuous or even accommodating.  Be that as it may, under specific conditions, a few creatures may cause sickness. These can be passed from individual to individual. Microbiology is the study of microscopic organisms, such as bacteria, viruses, Archaea, fungi and protozoa. This incorporates principal investigation on the natural chemistry, physiology, cell science, biology, development and clinical parts of microorganisms, including the host reaction to these operators. In any case, microorganisms are useful in the generation of numerous nourishment things, making meds, keeping nature clean, in assembling and in research. The microbes contribute to digestion, produce vitamin K, promote the development of the immune system and detoxify harmful chemicals in the human body. These are also essential in making many foods such as bread, cheese, and wine

The study of disease transmission is the branch that reviews and investigations the impacts and reasons for well being and malady conditions in characterized populaces. It is the foundation of general well being and shapes strategy choices and confirmation based practice through making sense of risky components and goals for counteractive action of wellbeing. The study of disease transmission has helped in creating methods utilized in restorative research, general wellbeing research, and to a lesser volume, fundamental research inside the natural sciences. The study of disease transmission essentially centered solely around pandemics of transmittable ailments yet turned out to be at last reached out to address endemic transferable disorders and non-transferable irresistible ailments. Epidemiological measurements are utilized to plot and assess procedures to forestall sickness and furthermore go about as a manual for the control of infection in patients who have just created indications.

Infection prevention and control (IPC) is a scientific approach and practical solution designed to prevent harm caused by infection to patients and health workers. It is grounded in infectious diseases, epidemiology, social science, and health system strengthening. IPC occupies a unique position in the field of patient safety and quality universal health coverage since it is relevant to health workers and patients at every single health-care encounter.

Infection Diseases is primarily focused on important topics such as  Bacterial Infectious Diseases, Viral Infectious Diseases, Fungal Infectious Diseases, Protozoan Infectious Diseases, Infectious Diseases and Cancer, Antigen-Antibody reactions, Host and Microbial Genetics, Prevention of Infectious Diseases, Infection Control and Public Awareness, Advancements in Vaccines and Therapeutics, Sexually Transmitted Diseases/ Sexually Transmitted Infections, Epidemiology & Diagnosis of Re-Emerging Infectious Diseases, Global Trends in Emerging Infectious Diseases-Antibiotics and many more.

The term orphan disease implies two separate but related concepts. It has been used to describe diseases that are neglected by doctors and has been applied, for example, to Fabry's disease, alveolar echinococcosis, variant renal cancer, high myopia, and even some common conditions, such as endometrial cancer and tobacco addiction. However, more specifically the term orphan disease is used to designate diseases that affect only small numbers of individuals