Text Book Of Mtb, Infections And Disease
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- Edition:August 2019
- Publisher:Mahi Publication
Infections are leading cause of human causalities since ancient time. The microbial infections including bacterial, fungal and viral have a wide spectrum of host and human are one of a major host of all kinds of pathogenic and contagious microbes. There are countless diseases caused by these microbes not only to human but also other animals as well (1). In many cases, human acts as one of host for many microbes to complete their life cycle. Further, getting an infection and onset of disease are two different things. We all are living in a world which is full of microbes, and daily we encounter several infections. The immune system maintains surveillance and continuously eradicates pathogenic microbes invading human body (2). The success of immune surveillance with a complex network of cellular and humoral immunity protects against invading pathogens. On the contrary, failure of the immune system including cellmediated, humoral and complement system result in a state where invading microbes find a place to grow and alter our physiology resulting onset of diseases (3). There are several routes by which microbes can enter the human body and cause diseases. The major routes are via skin, oral cavity, nasal cavity and many other body cavities as well. The route of infection also depends on types of pathogen and amount of infectious microbes as well.