Plants respond to biotic stress through a defense system. As bacterial and viral infections can both cause the same kinds of symptoms, it can be difficult to distinguish which is the cause of a. Section 193 diseases caused by bacteria and viruses pages 485490 key concepts how do bacteria cause disease. Biology 193 diseases caused by bacteria and viruses. Infectious diseases and human population history pdf. Viruses cause many diseases in plants and animals, e. Bacteria or other infectious agents that cause harm to their human hosts are called pathogens. The viruses that infect bacteria are called bacteriophage s, or simply phages. Viruses produce other serious diseases in other animals and in plants.
Aids, rabies, mumps, measles, small pox, poliomyelitis, yellow fever and the common cold. Treatment of communityacquired pneumonia during the. The emergence of resistant infections caused by these bacteria has led to mortality and morbidity and there is an urgent need to find solutions to combat bacterial resistance. Archaea and bacteria differ in fundamental ways, in this textbook it is convenient to. Antibiotics are used successfully to control bacteria. Oct 01, 2012 biology chp 19 bacteria and viruses powerpoint 1. Infectious diseases symptoms and causes mayo clinic. Although antibiotics have many beneficial effects, using them has contributed to the problem of. Find out more about how to prevent and treat these conditions.
It is often difficult to determine the cause of fungal diseases, because bacteria cause a secondary infection and are often erroneously identified as fungi. Communicable diseases are illnesses caused by infectious agents bacteria, viruses, parasites, fungi and prions or their toxins that are transmitted from an infected person, animal, plant or from the environment. Viruses have been important in the development of techniques of manipulating and. Bacterial spot is also a serious disease of pepper. These books contain exercises and tutorials to improve your practical skills, at all levels. It also explains what factors are used to identify prokaryotes. This disease is caused by bacteria, fungi or viruses and, therefore, divided into two. Common diseases of tomatoes part ii diseases caused by. It could explain many clinical, genetic, and epidemiologic aspects of these diseases, including the winterspring birth seasonality, regional differences, urban birth, household crowding. Pathogen is a bacterium, virus, or other microorganism that can cause disease. A disease causing agent diseases caused by bacteria and viruses section 193 this section describes bacterial and viral diseases. Coronavirus covid19 facts and advice interactive worksheet. Bacterial spot reduces tomato yield and quality by defoliation and spotting of fruit.
Section 19 3 diseases caused by bacteria and viruses pages 485490 this section describes bacterial and viral diseases. Infections and infectious diseases world health organization. Antibiotics and other medicines are not effective against viruses since viruses. An infection is the invasion of an organisms body tissues by diseasecausing agents, their. Not all bacteria, viruses or other micro organisms are. They are singlecelled organisms that lack a nucleus.
Tooth decay lyme disease tetanus tuberculosis salm. Because communicable diseases can have so much impact on populations, they are. As with the urinary tract, parts of the reproductive system closest to the external environment are the most likely sites of infection. In most cases the virus attacks and destroy certain cells in the body causing the symptoms of the disease. The pathogens causing the diseases covered in this manual include viruses, bacteria, rickettsiae, fungi, proto zoa, and helminths worms. Compare the major characteristics of specific bacterial diseases affecting the reproductive system in addition to infections of the urinary tract, bacteria commonly infect the reproductive tract. Section 19 1 bacteria answers key free pdf file sharing. Due to a large number of causes of meningitis, accurate identification of causative agents must be done before the treatment of disease. Bacterial and viral disease problems were investigated during this period in turkey. Start studying biology 193 diseases caused by bacteria and viruses. Coronaviruses are viruses that cause respiratory infections.
Viruses and disease page 486 cause human diseases such as polio measles, ais, mumps, influenza, yellow fever, rabies, and the common cold. Bacteria and viruses are everywhere in nature, but only a few cause disease. It is possible to be vaccinated against some of the major diseasecausing viruses such as measles and polio, as well as bacterial diseases such. Other viruses are just identified by their host group, such as animal or plant viruses. Bacteria, viruses, fungi, and parasites are different types of. The word phage comes from the greek word for devour. Learn vocabulary, terms, and more with flashcards, games, and other study tools. Powered by create your own unique website with customizable templates. Section 193 diseases caused by bacteria and viruses pages 485490 this section describes bacterial and viral diseases. Viruses can be seen as obligate intracellular parasites. Jan, 20 19 3 diseases caused by bacteria and viruses part 1 craig bals. Despite this trend, the new guideline continues to emphasize prompt antibacterial drug therapy for all patients diagnosed with cap.
Once mature the daughter viruses break the cell and spread elsewhere. Bacterial spot is a widespread disease of tomato in oklahoma, and can be particularly severe in eastern oklahoma, where rainfall and humidity levels promote disease development. There are trillions of strains of bacteria, and few cause diseases in humans. Viruses were also important in working out the molecular mechanisms of dna replication, transcription, and translation. In many viral infections, viruses attack and destroy certain body cells, causing the symptoms of the disease. Luc ces te eco circle the diseases caused by bacteria. Jun 29, 2016 193 diseases caused by bacteria and viruses bacteria and viruses 485 1 focus objectives 19. Viruses reproduce by transforming the hosts nucleic acids into virus nucleic acids when they multiply. Start studying biology 19 3 diseases caused by bacteria and viruses. The virus must attach to a living cell, be taken inside, manufacture its proteins and copy its genome, and find a way to escape the cell so the virus can infect other cells and ultimately other individuals. What can a vaccine do when it is injected into the body. Section 193 diseases caused by bacteria and viruses. Chapter 19 bacteria and viruses section 191 bacteriapages 471477 this section describes two groups of prokaryotes and explains how they differ.
List of human diseases caused by bacteria and viruses. 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. Human diseases caused by rna viruses include hepatitis c, measles, and rabies. In women, chlamydia infections can cause urethritis, salpingitis, and pid. Life can be defined as a complex set of processes resulting from the actions of proteins specified by nucleic acids. Fungal diseases are caused by fungi, which are small organisms. Growth of pathogenic bacteria disrupts the bodys equilibrium by interfering with its normal activities and producing disease. Any change other than an injury that disrupts the normal functions of the body. Lesson summary bacterial diseases microorganisms that cause diseases are known as pathogens. Archaea, bacteria, and viruses prokaryotes, viruses, and the study of plants. Bacteria, viruses, fungi, chemical agents, and drugs such as sulfonamides and intravenous immune globulin can stimulate the cytokine cascade, leading to localized inflammation within the cns. Bacterial diseases in humans biology 2e bc open textbooks. Once a cell is infected, the effects of the virus can vary depending on the type of virus. W a k e c o u n t y h u m a n s e r v i c e s p u b l i c h e.
When people get a disease caused by bacteria, they often take antibiotics, a type of medicine that kills bacteria and fights infections. Meningitis is defined as inflammation of the membranes surrounding the brain and spinal cord, including the dura, arachnoid, and pia mater. Viral diseases in humans include the common cold, influenza, aids, chicken pox, and measles. Jun, 20 viruses, viroids, and prions areformidable pathogens in animals andplants diseases caused by viral infections affect humans,agricultural crops, and livestock worldwide smaller, less complex entities called viroids andprions also cause disease in plants and animals,respectively 2011 pearson education, inc. Infections bacterial and viral better health channel. Read the latest world health organizations information on covid19. Devastating pathogenborne diseases and plagues, both viral. In addition, chlamydial infections may be associated with an. While many chlamydia infections are asymptomatic, chlamydia is a major cause of nongonococcal urethritis ngu and may also cause epididymitis and orchitis in men. What are the two general ways that bacteria cause disease. Jun 27, 2016 193 diseases caused by bacteria and viruses bacteria and viruses 485 1 focus objectives 19.
Generally, where can you find bacteria and viruses in nature. Biotic stress which is often called decay is caused by infectious diseases that develop in harvested fruit and is usually caused by bacteria, fungi, or yeasts. Please consult with the sign up sheet to ensure no two people are doing the same disease. The defense mechanism is classified as an innate and systemic response. Some of these missing phyla are relatively important, like the cyanobacteria. Download our section 19 3 diseases caused by bacteria and viruses answer key ebooks for free and learn more about section 19 3 diseases caused by bacteria and viruses answer key. The cause of cap includes a range of bacteria and viruses, and with the introduction of the pneumococcal conjugate vaccine, viruses are an increasingly frequent cause. Regular dental hygiene protection from tick bites current tetanus vaccination vaccination prop er foodhandling practices maintaining good health clean water supplies.
However, these pathogens, or diseasecausing agents, get all the attention. Section 19 3 diseases caused by bacteria and viruses answer. Chlamydia trachomatis is the causative agent of the sti chlamydia figure 18. The hypothesis that viruses or other infectious agents may cause schizophrenia or bipolar disorder dates to the 19th century but has recently been revived. Ppt virus, bacteria, protists, and fungi powerpoint. Biology 193 diseases caused by bacteria and viruses flashcards. Experimental work with viruses has provided important evidence that genes are made of nucleic acids. Viruses, bacteria, fungi and parasites can all cause infection. Some are inherited while others are caused by environmental aspects such as cigarette smoke. Plant viruses or reoviridae contain of rna as genetic material. Pdf bacterial and viral fish diseases in turkey researchgate. Milian instructor 3 the question of whether viruses are living organisms has an ambiguous answer.