Common diseases of tomatoes part ii diseases caused by. However, these microbes only cause a problem if your immune system. Most fungi are not dangerous, but some types can be harmful to health. There is also strong evidence that microbes may contribute to many noninfectious chronic diseases such as some forms of cancer and coronary heart disease. It may be caused by internal dysfunctions also, such as autoimmune diseases. Viral diseases in humans include the common cold, influenza, aids, chicken pox, and measles. List human diseases caused by bacteria, virus, fungi, and. Some diseases caused by pathogens are polio, cholera, mumps, rabies, malaria etc. Fungal diseases are caused by fungi, which are small organisms. Bacterial spot reduces tomato yield and qual ity by defoliation and spotting of fruit. By contrast, several thousand species exist in the human digestive system. Disease causing microorganisms safe drinking water.
The most severe type of bacterial skin infection is necrotizing fasciitis, commonly known as flesheating bacteria disease. The rapid dehydration can be lethal within hours, but it can be effectively treated with oral rehydration therapy. It is often difficult to determine the cause of fungal diseases, because bacteria cause a secondary infection and are often erroneously identified as fungi. Some people refer to disease causing microbes as bugs. Skin diseases are caused by viruses, rickettsiae, bacteria, fungi, and parasites. Viruses, fungi, bacteria and protists notes biology. Although most bacteria are harmless or often beneficial, some are pathogenic, with the number of species estimated as fewer than a hundred that are seen to cause infectious diseases in humans. This list is very important for one day exams and upsc exams. They are specially adapted to infect and multiply within a host.
In this manual infectious agents which cause infection and illness are called pathogens. Humans become infected most frequently through contaminated water or food. List human diseases caused by bacteria, virus, fungi, and protozoa hello friends welcome to. Disease causing microorganisms, however, are another matter entirely. Bacterial pathogens are introduced to new sites on contaminated seed or transplants. Diseases caused by bacteria are responsible for many deaths in the world since many centuries. The pathogens causing the diseases covered in this manual include viruses, bacteria, rickettsiae, fungi, proto zoa, and helminths worms.
Airborne diseases spread easily and are difficult to prevent. Bacteria produce disease in one of two general ways. Diseases caused by protozoa disease caused by bacteria disease caused by viruses disease caused by fungus. Every year, it affects 3 million to 5 million people and leads to up to 200,000 deaths. The prerequisite for success in this fight is the participation of all health care professionals. The following is a list of some of the major plant diseases, grouped by type of causative agent and ordered alphabetically. With this lifethreatening infection, the skin and deep underlying tissues are not eaten by the bacteria. Viral infections are also described, but of the cutaneous fungal diseases, only nail infections are included. Fungal spores can also be inhaled and cause infections in the lungs and other organs. Although we will mostly discuss infectious diseases in people on this page, other living organisms such as animals, plants, and microorganisms can all be made ill by an infectious disease. Other types of microorganisms include viruses, some fungi, and some parasites. After an initial consultation, who in 2007 established a foodborne disease burden epidemiology. Bacterial spot is a widespread disease of tomato in oklahoma, and can be particularly severe in eastern okla homa, where rainfall and humidity levels promote disease development.
Salmonella infection symptoms and causes mayo clinic. Fungal diseases are often caused by fungi that are common in the environment. Once established, bacteria are spread by splashing rain, water runoff, wind. Diseasecausing microbes can also be called pathogens, germs or bugs and are responsible for causing infectious diseases. Colonization of the body by various microbes results in the infectious disease. Gram staining is the application of a crystal violet dye to a culture of bacteria. List of diseases caused by bacteria and viruses in humans. Bacteria which retain a crystal violet dye are called gram positive bacteria. Gk, general studies, optional notes for upsc, ias, banking, civil services.
Microbes cause infectious diseases such as flu and measles. Typically, people with salmonella infection have no symptoms. Bacteria are a type of microorganism, which are tiny forms of life that can only be seen with a microscope. Today we will be covering a very important topic from the biology part of the general knowledge section that is list of diseases caused by virus, bacteria, protozoa and worm.
Diseases are also caused by microbes or microorganisms 1,2,3. Some people refer to diseasecausing microbes as bugs. Infectious plant diseases are caused by bacteria, fungi, or viruses and can range in severity from mild leaf or fruit damage to death. If the organism can cause infection, it is an infectious agent. Disease may be caused by factors originally from an external source, such as infectious disease. Download free pdf of list of diseases caused by microorganisms. Learn more about the types of airborne diseases and how to protect yourself. A common word for microbes that cause disease is germs.
Protection against viruses, either by hygiene or vaccination, is the best way to avoid viral illness. Virus is a microscopic particle which infect the body by creating replicas of their own in the cell of organism. Infections and infectious diseases are a great burden on many societies, including the countries in the who european region. List of human diseases caused by bacteria,virus,fungi. Microbes or microorganisms diseases caused by microorganisms diseases caused by.
Here you find the list of diseases in a tabular form and also details of some important ones. Thus, this post is very helpful for the upcoming government exams. Except for genetic and congenital factors, most of the diseases are caused by certain microorganisms. An infectious disease is any disease caused by a pathogen germ such as a virus, bacteria, parasite, or fungus. Within healthcare settings, many microorganisms have the perfect living and breeding conditions, due to the numbers of. To help you remember the diseases and their causative agents, we have designed this free ebook, from where you can learn by heart the names of microorganisms and the diseases associated with them.
Antimicrobials, such as antibiotics, are essential to treat infections caused by bacteria. List of human diseases caused by bacteria and viruses pdf. Necrotizing fasciitis flesheating disease national institute of allergy and infectious diseases niaid cc by 2. In the 1880s, robert koch discovered that microorganisms caused the diseases tuberculosis, cholera and anthrax.
Infections and infectious diseases whoeurope world health. Genetic and rare diseases information center gard po box 8126, gaithersburg, md 208988126 tollfree. Some bacteria destroy living cells and tissues of the infected organism directly, while some cause tissue damage when they provoke a response from the immune system. Salmonella infection salmonellosis is a common bacterial disease that affects the intestinal tract. Microorganisms include all unicellular organisms and so are extremely diverse. Pathogenic bacteria are bacteria that can cause disease. Diseases caused by viruses are called viral infections. These germs have been studying ways to trick the human immune system for a long time because getting past the bodys defences is key for their survival. Cholera is an acute diarrheal disease, caused by the waterborne bacterium vibrio cholerae. Those bacteria that do not retain the crystal violet dye and are either colored red or pink are referred to as the gram negative bacteria. Harmful microorganisms types and harmful effects on. Some fungal species cause diseases by growing on and causing irritation to the skin, hair, nails or mucus membrane of animals many are not harmful, but they are irritating and difficult to eliminate.
Fungi is made up of many fungus particles belongs to kingdom classification. For language access assistance, contact the ncats public information officer. Microorganisms and disease questions answers pdf free download in microbiology mcqs,interview questions,objective questions,multiple choice. Around 23 questions from this topic are asked in every exam. Antibiotics are used successfully to control bacteria. However, their overuse and misuse in veterinary and human medicine has been linked to the emergence and spread of resistant bacteria, rendering the treatment of infectious diseases ineffective in. Chapter 2 disease and disease transmission an enormous variety of organisms exist, including some which can survive and even develop in the body of people or animals. Soil borne human diseases jrc publications repository europa. Microbes cause disease in the course of stealing space, nutrients, andor living tissue from. Salmonella bacteria typically live in animal and human intestines and are shed through feces. Ive got the flu bug, for example, is a phrase you may hear. This chapter focuses on the common bacterial diseases of skin. Of the three domains of life identified by carl woese, all of the archaea and bacteria are microorganisms. List of human diseases caused by bacteria and viruses.
The pathogens responsible for causing such diseases can be divided into two. Microbiological classification of infectious diseases. List human diseases caused by bacteria, virus, fungi, and protozoa. Understanding microbes in sickness and health scholarworks. List of diseases caused by virus, bacteria, protozoa and worm. The gram stain attaches to peptidoglycan in the bacterial cell wall. Which of the following is common in the disease caused by. Bacteria that retain the color of the dye are called gram positive.