Bacteria often cause disease by releasing toxins into the organism body. These are caused by a variety of pathogenic viruses, bacteria, protozoa, fungi and worms. Bacterial classification, structure and function introduction the purpose of this lecture is to introduce you to terminology used in microbiology. Human gastrointestinal microbiota, also known as gut flora or gut microbiota, are the microorganisms generally bacteria and archaea, that live in the digestive tracts of humans. Gut bacteria are an important component of the microbiota ecosystem in the human gut, which is colonized by 1014 microbes, ten times more than the human cells. Has the ability to repair itself, to fight off attacking microorganisms and adapt to a variety of situations often time microorganisms enter the body and attempt to infect the body causing a disease a disease is a condition where an organism experiences impaired function often with detrimental symptoms. Emerging and reemerging infectious diseases the national institute of health offers this highschool curriculum supplement. Cover different classification schemes for grouping bacteria, especially the use of the gram stain 2.
Human diseases pdf download notes for ssc cgl 2017,upsc,nda. Gut bacteria play an important role in human health, such as supplying essential nutrients, synthesizing vitamin k, aiding in the digestion of cellulose, and promoting angiogenesis and enteric nerve function. Many nonhuman animals, including insects, are hosts to numerous microorganisms that reside in the gastrointestinal tract as well. Prophylaxis bcg vaccine isolation, health education. Revisit gut microbiota and its impact on human health and. Pdf pathogenesis of bacterial infection researchgate. Major functions of the gut microflora include metabolic activities that result in salvage of energy and absorbable. When the gut bacteria undergo some imbalance, several diseases may occur. Transmission of these pathogens occurs while using infected water for drinking, food preparation, and. This section aims to publish studies looking at all aspects of the prevention, diagnosis and management of bacterial and fungal diseases in humans, as well as related molecular genetics, pathophysiology, and epidemiology. Typhoid fever is a lifethreatening illness caused by the bacterium salmonella typhi.
Gk human diseases caused by bacteria viruses protozoa fungi. Just because you cant see them, doesnt mean theyre all out to get you. 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. Viruses of rabies are introduced through the wound caused by. Most human infections in the world today are either caused by viruses or bacteria. Restoring the healthy hostmicrobial interactions by personalized prebioticsprobotics, fmt, and dietary may be useful in achieving better clinical outcomes fig. Gram staining is the application of a crystal violet dye to a culture of bacteria. Gut bacteria play an important role in human health, such as supplying essential nutrients, synthesizing vitamin k, aiding in the digestion of cellulose, and promoting angiogenesis and. The gram stain attaches to peptidoglycan in the bacterial.
Conversely, a number of diseases that impact humans are caused by bacteria. H ere are some of the important list of human diseases caused by virus, bacteria, and protozoa for your competitive exam preparations. The bacteria enter the human variety through various sources and cause bacterial diseases. We are more bacteria than human healthy adult harbors 100 trillion bacteria in gut alone this is 10x the number of human cells we possess humans possess 23,000 genes microbiome contributes 3,300,000 communal gut microbial genome microbiome is 150 times larger than human genome. A virus is a micro organism and it is usually very difficult to kill.
Bacteria that retain the color of the dye are called gram positive. Human pathogenic bacteria can lead to many serious diseases, epidemics, and pandemics. Gk, general studies, optional notes for upsc, ias, banking, civil services. List of diseases caused by bacteria and viruses in humans. Bacteria in the gut fulfill a host of useful functions for humans, including digestion of unutilized energy substrates, stimulating cell growth, repressing the growth of harmful microorganisms, training the immune system to respond only to pathogens, and defending against some diseases. It is estimated that nearly 20 percent of all visits to dermatologists are related to.
Bacteria can enter other body systems and cause infections or disease. Infectious diseases bacteria are classified by their gram stain characteristics. Pdf in this book we would focus on how bacterias causes disease to human beings. Bacterial spot is a widespread disease of tomato in. Jun 24, 2018 bacteria are all around us and most people only consider these prokaryotic organisms to be diseasecausing parasites. Gut bacteria and diseases increasing evidence suggests that gut microbiota dysbiosis would lead to a number of diseases, including gastrointestinal disorders 2,3335, obesity 3638, cardiovascular diseases 3941, allergy 4244 and cnsrelated diseases 30,45, which affect a large population in the world. Jan 19, 2018 h ere are some of the important list of human diseases caused by virus, bacteria, and protozoa for your competitive exam preparations. Understand and protect against bacteria, viruses and. Learning objectives give examples of historical, new, and reemerging bacterial diseases in humans.
Pdf the human gastrointestinal tract is estimated to be colonised by over 10 bacteria, approximately 10fold of the total number of cells in the. Major functions of the gut microflora include metabolic activities that result in salvage of. In india as well as in the world many people often search for different human diseases and their scientific name of micro germs. While it is true that some bacteria are responsible for a large number of human diseases, others play a vital role. The human gut is the natural habitat for a large and dynamic bacterial community, but a substantial part of these bacterial populations are still to be described. It 100% sure that you will get at least one question from general science section human diseases caused by.
Infections and infectious diseases are a great burden on many societies, including the countries in the who european region. Acne is one of the most common skin diseases, affecting more than 45 million individuals in the united states. Waterborne diseases are the ones caused by pathogenic microbes spread via contaminated water. Diseases of tomato caused by bacteria, viruses and. It can be found in soil, air, water, and living bodies. Exploring gut microbes in human health and disease.
Bacteria that cause disease are called pathogenic bacteria, and they do so by producing poisonous substances called endotoxins and exotoxins. The gram stain attaches to peptidoglycan in the bacterial cell. Bmc infectious diseases bacterial and fungal diseases. Bacteria can enter the body through a cut in the skin, the respiratory tract or the digestive tract. Learn vocabulary, terms, and more with flashcards, games, and other study tools. Any body tissue can potentially be infected with bacteria. Gut bacteria are an important component of the microbiota ecosystem in the human gut, which is colonized by 10 14 microbes, ten times more than the human cells. May 16, 2019 human disease in this topic we are going to figure out some serious diseases caused by various types of bacteria, viruses protozoa and fungus. Report the common viral diseases spread by airborne. List of human diseases caused by bacteria and viruses. List of different human diseases caused by bacteria viruses protozoa and fungi. Zoonotic diseases fact sheet di s e a s e p a th o g e n ge n u s p e s ho s t g e t ra n s m i s s i on s y m p to ms i b a t io n f c t re a e n t p ho o relapsing fever bacteria borreliae spp.
You may have heard of black plague of the middle ages that was caused by the backteria yersinia pestis. The human gastrointestinal metagenome is the aggregate of. It is estimated that nearly 20 percent of all visits to dermatologists are related to the treatment of. One or more of the following defects cause diseases. Propionibacterium acnes and chronic diseases the infectious.
By contrast, several thousand species exist in the human. Microbiological classification of infectious diseases. Impacts of gut bacteria on human health and diseases. Bacterial diseases occur when pathogenic bacteria get into the body and begin to reproduce and crowd out healthy bacteria, or to grow in tissues that are normally sterile. While it is true that some bacteria are responsible for a large number of human diseases, others play a vital role in necessary human functions such as digestion. Bacterial diseases bacterial infection symptoms, causes. In summary, targeting the gut microbiota is a promising strategy for the prevention and treatment of human diseases believed to be affected by the development of dysbiosis. List human diseases caused by bacteria, virus, fungi, and protozoa hello friends welcome to. In this chapter, we therefore consider the following groups of bacteria of concern. Student activities include lab experiments with bacteria, accompanied by online video support for experiments. This was considered the deadliest pandemic in human history. Pdf impacts of gut bacteria on human health and diseases. Chemical control strategies that may be required are updated annually in the osu extension agents handbook of insect, plant disease and weed control circular e832.
The pathogens are generally carried with the help of. Section edited by ivan fn hung, jorge garbino and kelvin to. List of human diseases caused by bacteria and viruses gktoday. List human diseases caused by bacteria, virus, fungi, and. Causes of diseases disease causes body functions to disfunction or function improperly. Human to human spread has occurred through blood and organ donation. Here we are sharing list of all diseases caused by various bacteria,protozoa and viruses. With the genome of each bacterial strain harbouring thousands of genes, the collective bacterial genome contains about 100 times more genes than the human genome. Propionibacterium acnes is a grampositive human skin commensal that prefers anaerobic growth conditions and is involved in the pathogenesis of acne kirschbaum and kligman, 1963. Meningitis infection of the tissues that cover and protect the brain and spinal cord can be caused by viruses, bacteria or fungi. Bacterial infections in humans can cause disease, and the consequences of this.
Common diseases of tomatoes part ii diseases caused by. Microbial diseases of the digestive system boundless. Bacteria are found on human skin and in the digestive tract. Ncert science textbooks class 612, wikipedia microbes or microorganisms microorganisms include bacteria, fungi, protozoa, some algae, viruses, viroids and also prions that are proteinacious infectious agents. Rocky mountain spotted fever and other spotted fever group rickettsioses, ehrlichioses, and anaplasmosis united states. However, the relevance and effect of resident bacteria on a hosts physiology and pathology has been well documented. Three principal reasons most often cited for the spread of diseases are poor sanitation, improper management, and introduction of new animals into a herd. Diagnosis and management of tickborne rickettsial diseases. The number of genes in all the microbes in one persons microbiome is 200 times the number of genes in the human genome. Osteomyelitis and septic arthritis refer to bacterial infection of the bones and joints, respectively. To reduce that burden an integrated approach is required, combining health promotion, disease prevention and patient treatment. Of those communicable diseases which are tracked, 18 have been identified as soil borne diseases within the confines of this report, and the data which is available from 20062009 are discussed in this report. Microbes or microorganisms diseases caused by microorganisms diseases caused by bacteria, viruses, protozoans and fungi.
The pathogens are generally carried with the help of a vector. Harmful bacteria may also emit toxins that damage the body. Germs learn how germs work and what you can do to protect yourself. Some bacteria can cause diseases for human, animals and plants. Sharing contaminated needles, or needles for tattooing. List of 10 important bacterial diseases human health. Impacts of gut bacteria on human health and diseases article pdf available in international journal of molecular sciences 164. With recent estimates placing the ratio of human to bacteria cells to an approximate 1. Bacterial diseases bacteria are microscopic, singlecelled organisms bacte. Pathogenic bacteria are bacteria that can cause disease. Some common human diseases biology 267 notes module 4 environment and iii contact with soil contaminated with diseasecausing viruses and bacteria. Box 50, 6700 ab wageningen, the netherlands and laboratory of nematology, wageningen university and.
This list is very important for one day exams and upsc exams. Some important terms to rememberhuman diseases pdf download notes for ssc cgl 2017,upsc,nda,cds. Human disease in this topic we are going to figure out some serious diseases caused by various types of bacteria, viruses protozoa and fungus. Gut bacteria have been found to be involved in many diseases, such as ibd, obesity, diabetes, carcinoma, hiv, and autism. The microbiome is the genetic material of all the microbes bacteria, fungi, protozoa and viruses that live on and inside the human body. Infectious diseases, spread from person to person by bacteria, are among the leading causes of death despite advances in medical research. Some important terms to remember human diseases pdf download notes for ssc cgl 2017,upsc,nda,cds. Bacterial diseases causes, symptoms, human bacterial.
Viruses of rabies are introduced through the wound caused by the bite of rabid animals, especially dogs. Gk human diseases caused by bacteria viruses protozoa. Human diseases caused by virus, bacteria and protozoa pdf. Your immune system protects you against infectious agents. Bacterial diseases causes, symptoms, human bacterial diseases.
It is spread primarily by humans handling infected. Some diseases are also caused by microorganisms due to unbalanced diet such as viruses, bacteria, and fungi, protozoans, helminthes, worms, etc environmental. If potable water drinking water is contaminated with pathogens of diseases such as cholera, diarhhoea, hepatitis or jaundice, it reaches a healthy person upon consuming such water. This was a pathogenic bacteria list followed by the examples of pathogenic diseases. Human diseases caused by bacteria flashcards quizlet. Bacteria are all around us and most people only consider these prokaryotic organisms to be diseasecausing parasites. Bacteria aid in food digestion, nutrient absorption, vitamin production, and protect against other harmful microbes. We have included all the possible information regarding the topic which includes its causes, modes, causing virus etc. The prerequisite for success in this fight is the participation of all health care professionals. A pathogen is defined as an organism causing disease to. List human diseases caused by bacteria, virus, fungi, and protozoa. Bacteria are small single celled organisms and are amongst the most successful life forms on the planet.
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