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. Humans become infected most frequently through contaminated water or food. For instance, bacteria or similar organisms that are present within the mycelium are the causes of such diseases as drippy gill and mummy disease. Gingivitis is a mild form of gum disease that can usually be reversed with daily brushing and flossing, and regular cleaning by a dentist or dental hygienist. Although descriptions of the more common diseases have been given to assist with identification, it can be difficult to diagnose some diseases with similar symptoms.
Bacterial disease, any of a variety of illnesses caused by bacteria. The vast majority of bacteria do not cause disease, and many bacteria are actually helpful and even necessary for good health. Highly contagious viral disease caused by the sarsassociated corona virus sarscov. Food borne diseases lectures university of nairobi. Genetic and rare diseases information center gard po box 8126, gaithersburg, md 208988126. Tooth decay and gingivitis inflammation of the gums are common oral diseases caused by bacteria. There are other less common diseases affecting cucurbits which are not covered here. After harvest, they are a major cause of mushroom browning. Transmission is primarily through the egg but may occur by other means such as. Pathogenic bacteria are bacteria that can cause disease.
The causes are bacteria, salmonella pullorum and s. Bacterial diseases for questions 15, complete each statement by writing the correct word or words. Human disease in this topic we are going to figure out some serious diseases caused by various types of bacteria, viruses protozoa and fungus. Most diseases covered are economically significant or have the potential to become so. Fungal diseases are presented in the following sequence. Plant diseases caused by bacteria narratives halo blight of bean pseudomonas syringae pv.
Typically, people with salmonella infection have no symptoms. 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. Improved sanitation, vaccines, and antibiotics significantly decreased mortality rates. Bacterial diseases occur when pathogenic bacteria get into an area of the body that is normally sterile, such as the bladder, or when they crowd. In contrast, extracellular bacteria typically cause acute diseases, which develop soon after. Thus, this post is very helpful for the upcoming government exams. List human diseases caused by bacteria, virus, fungi, and. In gingivitis, the gums become red, swollen and can bleed easily. Microbes or microorganisms diseases caused by microorganisms diseases caused by bacteria, viruses, protozoans and fungi. Nonhazardous bacteria also help prevent diseases by occupying places that the pathogenic, or disease causing, bacteria want to attach to.
Common bean phaseolus vulgaris, lima bean phaseolus lunatus, and many others in the bean family, such as pigeon pea cajanus cajan, butterfly pea clitoria ternatea, and purple bean villosa perpurpurea, scarlet runner bean phaseolus coccineus. Some bacteria destroy living cells and tissues of the infected organism directly, while some cause tissue damage when they provoke a. In the united states, klebsiella pneumoniae and klebsiella oxytoca are the two strains responsible for most human illnesses. Here are some diseases caused by stagnant water or a list of waterborne diseases. List of diseases caused by virus, bacteria, protozoa and worm. Bacteria can also cause disease by releasing that harm the body. To reduce that burden an integrated approach is required, combining health promotion, disease prevention and patient treatment. Bacteria that cause disease are called pathogenic bacteria, and they do so by producing poisonous substances called endotoxins and exotoxins.
By contrast, several thousand species exist in the human. Conversely, a number of diseases that impact humans are caused by bacteria. An infected person can transmit measles from four days prior to the onset of. 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. Aids human immunodeficiency virus hiv influenza influenza virus. The chart below shows key terms from the lesson with their definitions. Before extreme control programs and testing, this was a major disease of humans and domestic.
If the amount of antibiotic is small and the number of bacteria large, the antibiotic will not produce its full effect. Salmonella infection salmonellosis is a common bacterial disease that affects the intestinal tract. A disease caused by a strain of streptococcus that produces an erythrogenic toxin leading to the development of a red rash and a strawberrycolored tongue. In india as well as in the world many people often search for different human diseases and their scientific name of micro germs. Hallmark 6 intracellular bacteria coexist with their cellular habitat for long periods. Report the common viral diseases spread by airborne. The disease state caused by a virus enables normally harmless bacteria to become pathogenic. Infections and infectious diseases are a great burden on many societies, including the countries in the who european region. Bacterial spot reduces tomato yield and quality by defoliation and spotting of fruit. Learn vocabulary, terms, and more with flashcards, games, and other study tools.
Common diseases of tomatoes part ii diseases caused by. Antibiotics also act by changing the intestinal flora. In humans, the bacteria are often present in parts of the digestive tract where they do not generally cause problems. Bacterial diseases were once leading causes of death. Goat diseases and farm herdhealth safety compiled by charlotte cliffordrathert, veterinarian, small ruminant extension specialist. The prerequisite for success in this fight is the participation of all health care professionals. Bacteria are known to cause distortion, discolouration and decay. Erythrogenic toxin a secretion, produced by some strains of streptococci, that causes the red rash of scarlet fever. Bacterial spot is also a serious disease of pepper. 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.
For language access assistance, contact the ncats public information officer. If you have problems viewing pdf files, download the latest version of adobe reader. Fungal diseases are caused by fungi, which are small organisms. Learn more about types of bacterial disease and the mechanism by which bacteria cause illness. Bacterial diseases are caused by harmful bacteria pathogenic bacteria. Bacteria produce disease in one of two general ways. Tablante professor and extension poultry veterinarian vamd college of veterinary medicine university of maryland college park 8075 greenmead drive college park, md 20742 tel. These substances are responsible for the symptoms that occur with bacteria related diseases. Left untreated, however, these infections can lead to serious complications including pelvic inflammatory disease in women, and spread to other body organs and tissues. Some infectious diseases are contagious or communicable, that is, spread from one person to another. 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. Such diseases can also spread by stagnant water or consuming foods whose preparation is done using such contaminated water. Around 23 questions from this topic are asked in every exam. Define emerging disease, and explain why emerging diseases are a threat to human health.
H7 causes about 73,500 cases of illness and 60 deaths annually in the u. Salmonella bacteria typically live in animal and human intestines and are shed through feces. Pullorum disease and fowl typhoid are infectious, acute, or chronic bacterial diseases affecting primarily chickens and turkeys, but most domestic and wild fowl can be infected. Many klebsiella infections are acquired in the hospital setting or in long. Cover different classification schemes for grouping bacteria, especially the use of the gram stain 2.
Klebsiella is a type of bacteria commonly found in nature. This primefact covers common cucurbit diseases caused by fungi, bacteria and viruses. The jejunum, ileum and colon are primarily affected resulting in acute inflammation and occasionally, abscess formation. Small pox it is caused by either of two virus variants, variola major and variola minor. Salmonella infection symptoms and causes mayo clinic. One way bacteria can cause disease is by breaking down and damaging of the infected organism. Bacterial classification, structure and function introduction the purpose of this lecture is to introduce you to terminology used in microbiology. An infectious disease caused by the bacteria mycobacterium. Some drugs used in the poultry industry produce major effects in treating specific diseases.
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