Microbes and disease

Harmful microorganisms, such as less than 1% bacteria, may invade our bodies (hosts) and make us sick. Microorganisms can cause infections such as influenza and measles

There is also strong evidence that microorganisms can cause many noninfectious chronic diseases such as certain cancers and coronary heart disease. Various diseases are caused by various kinds of microorganisms. Microorganisms causing disease are called pathogens

Infection is the invasion and multiplication of pathogenic microorganisms in individuals or populations.

In order to cause infection, microorganisms must be in our body. The portal they enter is called a portal

T cells allow the immune system to recognize invading microorganisms and diseased cells while ignoring healthy cells. The ability of T cells to recognize specific or diseased cells is determined by two proteins pairing to form their "T cell receptor". Paired receptors are transported to the surface of T cells that bind to infected cells or cancer cells. Those T cells that produce receptors that bind to healthy cells are eliminated during development. T cells usually distinguish between the body's own cells and cells that invade bacteria or other microorganisms. However, it is more difficult to recognize because cancer cells resemble healthy cells. Efforts to develop therapeutic methods that enhance the ability of the immune system to recognize cancer cells have limited success. A successful approach known as T cell receptor gene therapy changes to destroy cancer cells by arming T cells with cancer specific T cell receptors

Infection and disease are different. Normally, the first step, infectious diseases, occurs when bacteria, viruses, and other microorganisms causing the disease begin to breed and enter your body. Illness occurs when cells of your body are damaged (by infection) and the symptoms and signs of the disease develop. Please wash your hands. It is often overlooked that handwashing is one of the easiest and most effective ways to protect yourself from bacteria and most infections. After exercising coughing or sneezing, after exchanging the diaper, before going to the toilet and preparing and eating, please wash your hands thoroughly. Alcohol-based hand disinfection gel provides protection without soap and water

You may not care less about microorganisms. They may cause illness. They are a little dirty. That's why we wash our hands. They catch a cold with Pest, Influenza, Giardia, Ebola. Keep antibiotics, build hospitals to fight infections, and fund funding for scientific research on how to prevent epidemics. To cope with the adverse effects of microorganisms, a lot of work is required, and if you do not do that, we may think that we are better. But let's put things in our eyes. Our planet was formed about 6 billion years ago. The oldest living organisms we have discovered are evidence of microorganisms 8 billion years ago, fossils of small unicellular organisms in ancient hydrothermal eruptions, large multicellular organisms of hundreds of millions years ago. 600 million years ago), dinosaurs (250 million years ago), flowering plants (100 million years ago), and modern humans (at least 200,000 years ago)