What are the most common microorganisms that cause disease?

What are the most common microorganisms that cause disease?

A variety of microorganisms can cause disease. Pathogenic organisms are of five main types: viruses, bacteria, fungi, protozoa, and worms. Some common pathogens in each group are listed in the column on the right.

What are the 5 most common microorganisms?

Microbial diversity is truly staggering, yet all these microbes can be grouped into five major types: Viruses, Bacteria, Archaea, Fungi, and Protists.

Are there any diseases that are caused by microorganisms?

The microbes that are harmful and capable of producing microorganism diseases also termed as pathogens. But not all the microbes are harmful and they do not cause microbial infection. Rather some are useful as well and serve in our everyday life.

How are microbes harmful to the human body?

A few harmful microbes, for example less than 1% of bacteria, can invade our body (the host) and make us ill. Microbes cause infectious diseases such as flu and measles. There is also strong evidence that microbes may contribute to many non–infectious chronic diseases such as some forms of cancer and coronary heart disease.

Which is the most common cause of infectious diseases?

Generally, infectious diseases can be caused by: Bacteria : These one-cell organisms are responsible for illnesses such as strep throat, urinary tract infections and tuberculosis. Viruses : Even smaller than bacteria, viruses cause a multitude of diseases — ranging from the common cold to AIDS.

Which is the most lethal disease caused by microbes?

Following is a list of 8 known diseases caused by microbes. Ebola is one of the most lethal viruses to infect humans, with a mortality rate reaching 90 percent in some outbreaks. Ebola is one of two known filoviruses that cause severe hemorrhagic fever in humans.

What are ten diseases caused by bacteria?

10 common diseases caused by bacteria – Leprosy or Hansen’s disease. It is a curable disease with timely treatment. – Meningitis. The meningitis is an infection of the meninges, tissues that cover the brain and the spinal cord , and may be of viral or bacterial origin. – Tuberculosis. – Cholera. – Pneumonia. – Whooping cough or convulsive cough. – Diphtheria. – Tetanus. – Botulism.

What are some examples of harmful microorganisms?

Some of the microorganisms harmful to humans most common are Escherichia coli, Streptococcus pneumoniae, Salmonella or Bacillus cereus.

What are common bacterial diseases?

The most common diseases caused by bacteria include meningitis, gastritis, sexually transmitted diseases, skin infections, boils, among others. All these diseases are known as bacterial diseases.

How do microorganisms cause disease?

Microorganisms that cause disease are collectively called pathogens. Pathogens cause disease either by disrupting the bodies normal processes and/or stimulating the immune system to produce a defensive response, resulting in high fever, inflammation and other symptoms.