What is an infectious disease?

Infectious disease is a disease caused by a pathogen that enters the body and causes the development of infection. Infectious diseases have a number of causes and can be found around the world. These diseases are considered contagious or portable, which means that they can be passed from man to humans. It is also possible that such diseases spread indirectly through non -hygienic conditions or from animals to humans, in which case they are known as zoonotic diseases. In these large categories of infectious organisms, there are many ways of transmission and a color range of symptoms, although surprisingly few organisms cause infectious diseases when one considers the variety of viral, bacterial, fungal and protozoan life. In order to treat infectious diseases, doctors must be able to set out the source infective and correct the damage caused by the body. Many infectious diseases make the body vulnerable to secondary infections in which other organisms move to use weakenedAbout the immune system, and this can be very problematic.

Infectious disease study is called epidemiology. Epidemiologists are working to determine the source of infectious disease to develop new therapeutic approaches. They also identify emerging outbreaks that may develop in an epidemic or pandemic, and an area where the disease is endemic, which means it occurs regularly. For example, malaria is endemic for some regions of Africa and Southeast Asia.

There are a number of techniques that can be used to prevent the spread of infectious diseases. Basic hygiene eliminates many organisms if people wash their hands, use clean drinking water and have access to pure medical facilitices. Reducing contact with vectors of zoonotic transmission, such as insects and rodents, can also reduce the incidence, as well as education in communities where specific infectious diseases are endemic.

antiviralIky, antibacterial and antifungals are used in the fight against infectious disease, sometimes prophylactically to prevent infection in endemic areas. Doctors also use a number of medical tests and screening tools to identify patients and risk populations and other medical treatment, such as such surgery and minor procedures, are also used to treat and prevent infectious diseases.

worldwide, infectious disease is a common killer, especially in developing countries. Respiratory infections are the deadliest infectious diseases followed by HIV/AIDS, diarrhea, tuberculosis and malaria. Many infectious diseases can be fully prevented with minimal efforts, which in some regions becomes a high loss of life, such as diarrhea diseases, especially unfortunate.