Chapter 19 bacteria and viruses loudoun county public. At some point, these viruses can also use the cell to produce more viruses, destroying the cell. Geography detailed contents list geography pdf sample file 3 mb geography print friendly pdf sample file 3 mb geography related current affairs may 2019 500 kb geography related. Viral diseases of the skin and wounds chickenpox and shingles signs and symptoms chickenpox characterized by lesions on the back and trunk that spread across body shingles lesions localized to skin along an infected nerve pathogen varicellazoster virus vzv causes both diseases pathogenesis.
There are many types of viruses that cause a wide variety of viral diseases. Damage the cells and tissues by breaking down the cells for food releasing toxins poisons into the body 21. Diseases caused by bacteria cholera vibrio cholerae anthrax bacillus anthrasis diphtheria corynebacterium diphtheriae leprosy mycobacterium leprae botulism clostridium botulinum syphilis treponema pallidum tetanus clostridium tetani trachoma chlamydia trachomatis tuberculosis mycobacterium tuberculosis typhoid fever salmonella typhi. Module 3 honeybee diseases, pests and poisoning contents. As different as they are, all viruses have one thing in common. Lysogenic cycle other viruses insert their genetic information into the cells chromosomes. Freshwater fish diseases caused by bacteria belonging to the genera aeromonas and pseudomonas. Five 26% waterborne outbreaks were caused by exposure to a contaminated drinking water source, and 4 21% were caused by drinking from a water source not intended for human consumption. The last three are all very severe forms of diarrhoea with fever, vomiting and. Use section 19 1 to identify the 3 basic shapes of bacteria below. A few notable examples that have garnered the attention of the public health community and the population at large include. Geography detailed contents list geography pdf sample file 3 mb geography print friendly pdf sample file 3 mb geography related current affairs may.
If you continue browsing the site, you agree to the use of cookies on this website. This is just one of the solutions for you to be successful. Chapter 19 bacteria and viruses slideshare uses cookies to improve functionality and performance, and to provide you with relevant advertising. Infectious plant diseases are caused by bacteria, fungi, or viruses and can range in severity from mild leaf or fruit damage to death. Use section 191 to identify the 3 basic shapes of bacteria below. Start studying biology 193 diseases caused by bacteria and viruses. We conducted active surveillance of communityacquired alri in two hospitals in cambodia, a lowincome tropical country. Viruses, bacteria, fungi and parasites can all cause infection. Although antibiotics have many beneficial effects, using them has contributed to the problem of. Jun 29, 2016 193 diseases caused by bacteria and viruses bacteria and viruses 485 1 focus objectives 19. The risk of severe ab, and related complications, caused by rsv, is wellknown among preterm infants, those with severe congenital heart disease chd, bronchopulmonary dysplasia bpd, malformations, neuromuscular diseases and. Any change other than an injury that disrupts the normal functions of the body. Some bacterial and fungal pathogens also colonize these surfaces and attempt to.
Start studying biology 19 3 diseases caused by bacteria and viruses. Viruses were also important in working out the molecular mechanisms of dna replication, transcription, and translation. Everfi answers module 9 everfi answers module 9 everfi answers module 9 symsys03. To study the concepts underlying infectious disease including those caused by viruses, bacteria, fungi and. Examples of causal agents or organisms are fungi, bacteria, viruses, nematodes, and parasitic seed. The equine encephalitides are a group of diseases cause by four viruses in the alphavirus genus eastern equine encephalitis eee, western equine encephalitis wee, venezulan equine encephalitis vee, and everglades. Aids human immunodeficiency virus hiv influenza influenza virus. Social, economic, and health impact of the respiratory. Section 193 diseases caused by bacteria and viruses pages 485490 key concepts how do bacteria cause disease. Complete the question over bacterial diseases and those over bacterial diseases. This reaction produces radiolabeled carbon dioxide that can be detected in the patients breath. One of the major setbacks in this sector is the frequent outbreaks of diseases often due to bacterial pathogens. Most of the time, this is what you can expect when you pay a visit to a spa or salon. Sustainable control of waterrelated infectious diseases.
Organisms are parasites if they derive their nutrients from other living organisms. Viral diseases are contagious and spread from person to person when a virus enters the body and begins to multiply. Plant viruses are transmitted by seeds, insects, nematodes, fungi, grafting, and mechanical means. Compare the major characteristics of specific bacterial diseases affecting the gi tract. A viral disease is any condition thats caused by a virus. What can a vaccine do when it is injected into the body.
The viruses that infect bacteria are called bacteriophage s, or simply phages. Guidelines on prevention of communicable diseases in. Hansens disease also known as leprosy is caused by a long, thin, filamentous rodshaped bacterium mycobacterium leprae, an obligate intracellular pathogen. This can happen when an individual with the bacterium or virus touches. Bacteria, fungi, and autoimmune disorders can cause encephalitis, but most cases are viral in origin. Viruses are composed of nucleic acids surrounded by protein sheaths. Two 40% of 5 animal contactassociated outbreak reports noted contact with calves, 2 40% with goats, and 1 with baby chicks, ducks, and goats. A very unpleasant odour may sometimes accompany severe efb infection, depending on the presence of certain other species of bacteria in the remains of dead larvae. Use these as well as 193 to complete the questions.
Once a cell is infected, the effects of the virus can vary depending on the type of virus. The body reacts to diseasecausing bacteria by increasing local. Few data exist on viral and bacterial etiology of acute lower respiratory infections alri in. What are some examples of diseases caused by viruses. Learn vocabulary, terms, and more with flashcards, games, and other study tools. Studyres contains millions of educational documents, questions and answers. Viral diseases viral diseases are extremely widespread infections caused by viruses. The most common bacterial agents responsible for cns infection in infants 0 to 3 months of life in declining order of fre. The following is a list of some of the major plant diseases, grouped by type of causative agent and ordered alphabetically. Geography notes pdf for upsc ias civil services exam environment notes for upsc ias gs1, gs3 books for upsc ias civil services examination books for geography optional upsc ias cse geography pdf sample files. The bacteria themselves can be detected using either a stool test or a stomach wall biopsy.
Viruses, viroids, and prions are formidable pathogens in animals and plants diseases caused by viral infections affect humans, agricultural crops, and livestock worldwide smaller, less complex entities called viroids and prions also cause disease in. Bacterial disease, any of a variety of illnesses caused by bacteria. The most common and often most dangerous diseases, especially for young children, are bacterial diseases such as diarrhoea, dysentery, typhoid and cholera. You may then either print the fact sheet or save it as a pdf. Although antibiotics have many beneficial effects, using. Diseases caused by bacteria and viruses section 193 this section describes bacterial and viral diseases. Diseases caused by bacteria how does bacteria produce disease. But you can also wind up going home with any number of unpleasant conditions, from burns to bacterial. Experimental work with viruses has provided important evidence that genes are made of nucleic acids. Viruses that are spread by insect bites include the causative agents for. In biology, a pathogen in the oldest and broadest sense, is anything that can produce disease. These infections are caused by bacteria, parasites and viruses and are transmitted in. Small pox it is caused by either of two virus variants, variola major and variola minor. A virus is an even smaller microorganism that can only reproduce inside a.
Pdf viruses and bacteria in the etiology of the common cold. See the ppts uploaded below on bacterial and viral diseases. Identify the most common bacteria that can cause infections of the gi tract. A pathogen may also be referred to as an infectious agent, or simply a germ. The aquaculture sector is a major contributor to the economic and nutritional security for a number of countries. Communicable diseases refer to the diseases that can be transmitted and make people ill. Chapter 19 3 diseases caused by bacteria and viruses. Read chapter 193, diseases caused by bacteria and viruses. A chromosomescale genome assembly of isatis indigotica, an. There are several types of viral disease, depending on the underlying virus. This leads to more rapid evolution and change in rna viruses. The seedling offspring of a virusinfected plant is usually, but not always, free of the virus. If there is not enough room in the concept map to write your answers, write them on a separate sheet of paper.
But under certain conditions, some organisms may cause disease. So far, of the 21 rice diseases occurring in nepal, including major and minor diseases, 2 diseases caused by viruses viz. Bacterial diseases were once leading causes of death. Section 193 diseases caused by bacteria and viruses. Rice virus diseases in nepal investigations on rice diseases in nepal have been initiated since 196364. Some are inherited while others are caused by environmental aspects such as cigarette smoke. The respiratory syncytial virus rsv causes acute bronchiolitis ab and upper and lower respiratory tract infections. Indeed, many professional medical books are devoted exclusively to this topic. There are obviously many other human diseases caused by viruses. Abiotic diseases are nonliving and are caused by environmental or manmade stress. Typically, the term is used to describe an infectious microorganism or agent, such as a virus, bacterium. Pdf two hundred young adults with common colds were studied during a 10month period. A chromosomescale genome assembly of isatis indigotica.
Its dried leaves and roots called isatidis folium and isatidis radix, respectively are broadly used in traditional chinese medicine for curing diseases caused by bacteria and viruses such as. What are the two general ways that bacteria cause disease. Viruses and bacteria in the etiology of the common cold. Viruses can be seen as obligate intracellular parasites. Microbes or microorganisms diseases caused by microorganisms diseases caused by bacteria, viruses, protozoans and fungi. Bacterial infections are caused by bacteria either breaking down the bodys tissues for food or releasing harmful toxins into the body. Human diseases caused by rna viruses include hepatitis c, measles, and rabies.
Define emerging disease and explain why emerging diseases are a threat to human health. Lecture 2 viruses bacteria and fungi free download as powerpoint presentation. Ppt diseases caused by bacteria and viruses powerpoint. Microorganisms microbes include bacteria, fungi, protozoa, some algae, viruses, viroids and also prions that are proteinacious infectious agents. Human diseases caused by viruses include chickenpox, herpes, influenza, rabies, small. Viruses have been important in the development of techniques of manipulating and. Growth of pathogenic bacteria disrupts the bodys equilibrium by interfering with its normal activities and producing disease.
Viruses produce other serious diseases in other animals and in plants. Viruses, viroids, and prions are formidable pathogens in animals and plants diseases caused by viral infections affect humans, agricultural crops, and livestock worldwide smaller, less complex entities called viroids and prions also cause disease in plants and animals, respectively. Module 3 honeybee diseases, pests and poisoning 4 american foul brood european foul brood there may then be an unpleasant smell associated with decomposition. They are capable of altering a plants metabolism by affecting protein synthesis. Blood testing can also be used to detect antibodies to h. Viral diseases in humans include the common cold, influenza, aids, chicken pox, and measles. Many human infections are caused by either bacteria or viruses. List of human diseases caused by bacteria,virus,fungi. Lesson summary bacterial diseases microorganisms that cause diseases are known as pathogens. Prevention and control of youth campassociated acute.
Chapter 19 bacteria and viruses concept map class date graphic organizer include 241 using information from the chapter, complete the concept map below. Free pdf ebooks users guide, manuals, sheets about chapter 19 3 diseases caused by bacteria and viruses ready for download i look for a pdf ebook about. Recall that foodborne disease can arise from either infection or intoxication. Jun 27, 2016 193 diseases caused by bacteria and viruses bacteria and viruses 485 1 focus objectives 19. Infections bacterial and viral better health channel. Patients were tested for acidfast bacilli afb by direct sputum examination, other bacteria by blood andor sputum. Infectious diseases symptoms and causes mayo clinic. A wide range of gastrointestinal diseases are caused by bacterial contamination of food.
Diseases caused by bacteria and viruses section 19 3 this section describes bacterial and viral diseases. Other viruses are just identified by their host group, such as animal or plant viruses. The risk of severe ab, and related complications, caused by rsv, is wellknown among preterm infants, those with severe congenital heart disease chd, bronchopulmonary dysplasia bpd, malformations, neuromuscular diseases and immunological disorders. What is not a purpose of public health surveillance. For example, the fact that influenza is an rna virus is one reason a new flu vaccine is needed every year. Some of the diseases that are caused by viral pathogens include smallpox. Chemical nature of cell walls bacilli teaching resourceschapter 19 prokaryotes. Update for bio 4041 from introductory microbiology to. Viruses can reproduce only by infecting living cells. A free powerpoint ppt presentation displayed as a flash slide show on id. These diseases are caused by faeces in water used for drinking, cooking and washing. Others are caused by agents such as bacteria, viruses and fungi. Start studying 193 diseases caused by bacteria and viruses.
Diseases caused by bacteria and viruses bacteria and viruses are. Viruses differ widely in terms of size and structure, as you can see in figure 199. Many other waterassociated human pathogens, including vibrio cholerae o9, hepatitis viruses, cyclospora, microsporidia, yersinia enterocolitica, and environmental bacteria e. The pathogens causing the diseases covered in this manual include viruses, bacteria, rickettsiae, fungi, proto zoa, and helminths worms. Cell biology of infection molecular biology of the cell ncbi. They enter living cells and, once inside, use the machinery of the infected cell to produce more viruses. Apr 17, 2009 many other waterassociated human pathogens, including vibrio cholerae o9, hepatitis viruses, cyclospora, microsporidia, yersinia enterocolitica, and environmental bacteria e. They are caused by infective agents pathogens that invade human body or. In many viral infections, viruses attack and destroy certain body cells, causing the symptoms of the disease. Any agent isolated from the csf of a preterm or term infant should be considered significant. When people get a disease caused by bacteria, they often take antibiotics, a type of medicine that kills bacteria and fights infections. List human diseases caused by bacteria, virus, fungi, and. In both cases, bacterial toxins are typically responsible for producing disease signs and symptoms.