07_Pathogenicity_and_virulence - IS MU
... Particular microbial species is pathogenic for a specific host species only, for another species it may be non-pathogenic This host species is susceptible to the relevant microbial species, to a different microbial species it can be resistant ...
... Particular microbial species is pathogenic for a specific host species only, for another species it may be non-pathogenic This host species is susceptible to the relevant microbial species, to a different microbial species it can be resistant ...
Leaving Certificate Biology Photosynthesis Quiz
... is naturally produced by living microorganisms and destroys or inhibits the growth of other micro-organisms, especially bacteria or fungi? Antiseptic ...
... is naturally produced by living microorganisms and destroys or inhibits the growth of other micro-organisms, especially bacteria or fungi? Antiseptic ...
Host Parasite Relationship OBJECTIVES
... which is the number of organisms or mg. of toxins that will kill 50% of susceptible lab. animal ( usually mice ) when injected into such animal. When the LD 50 is small, the microorganism is considered highly virulent and when it is high the organism is said to be of low virulence. ...
... which is the number of organisms or mg. of toxins that will kill 50% of susceptible lab. animal ( usually mice ) when injected into such animal. When the LD 50 is small, the microorganism is considered highly virulent and when it is high the organism is said to be of low virulence. ...
Microbiology: A Systems Approach, 2nd ed.
... (LPS), which is part of the bacterial cell wall of Gram-negative bacteria. It is the Lipid A component of the LPS that has the toxic properties. The LPS is a very potent antigen and, as a result, stimulates an intense host immune response. As part of this immune response cytokines are released which ...
... (LPS), which is part of the bacterial cell wall of Gram-negative bacteria. It is the Lipid A component of the LPS that has the toxic properties. The LPS is a very potent antigen and, as a result, stimulates an intense host immune response. As part of this immune response cytokines are released which ...
File - chemistryattweed
... anthrax. The organism believed to be the cause of the disease must always be present when the disease occurs. The organism must be isolated from the host and grown in pure culture. Organisms from the pure culture, when inoculated into healthy, suitable, susceptible hosts must produce the disease. Th ...
... anthrax. The organism believed to be the cause of the disease must always be present when the disease occurs. The organism must be isolated from the host and grown in pure culture. Organisms from the pure culture, when inoculated into healthy, suitable, susceptible hosts must produce the disease. Th ...
Chapter 23 Powerpoint lecture
... List three pathogens that are transmitted by animal bites and scratches. ...
... List three pathogens that are transmitted by animal bites and scratches. ...
Chapter 23 Powerpoint Show
... • Very large herpesvirus latent in white blood cells • Mild or no symptoms in healthy individuals • Several disease symptoms in developing world ...
... • Very large herpesvirus latent in white blood cells • Mild or no symptoms in healthy individuals • Several disease symptoms in developing world ...
Germs and Disease
... Colds are spread if you touch someone’s hand that has sneezed or coughed into their hand, then you touch your eyes or nose. ...
... Colds are spread if you touch someone’s hand that has sneezed or coughed into their hand, then you touch your eyes or nose. ...
Antibiotics, Viruses, and Prions
... • Using the body as resources to grow and reproduce • Battled by the immune system • Different numbers of bacteria needed to overwhelm the immune system and cause ...
... • Using the body as resources to grow and reproduce • Battled by the immune system • Different numbers of bacteria needed to overwhelm the immune system and cause ...
17 Lyme Disease: the Great Controversy 17.1 Background
... Reinforced by information from support groups and the Internet, patients with a common but non-speciÞc symptom complex became convinced that their di#culties were caused by an infection for which the diagnostic tools were deeply ßawed. Even more frightening, they believed that, if le$ untreated, thi ...
... Reinforced by information from support groups and the Internet, patients with a common but non-speciÞc symptom complex became convinced that their di#culties were caused by an infection for which the diagnostic tools were deeply ßawed. Even more frightening, they believed that, if le$ untreated, thi ...
Chapter 13 Topics - Human Host
... • Sequelae – long-term damage to tissues or organs Meningitis deafness ...
... • Sequelae – long-term damage to tissues or organs Meningitis deafness ...
document
... Treponema pallidum • In primary syphilis, the Spirochetes multiply at the site of inoculation and a local, nontender ulcer (chancre) usually forms in 2 to 10 weeks. The ulcer heals spontaneously, but Spirochetes spread widely via the bloodstream (bacteremia) to many organs. • One to three months lat ...
... Treponema pallidum • In primary syphilis, the Spirochetes multiply at the site of inoculation and a local, nontender ulcer (chancre) usually forms in 2 to 10 weeks. The ulcer heals spontaneously, but Spirochetes spread widely via the bloodstream (bacteremia) to many organs. • One to three months lat ...
Chapter 14: Principles of Epidemiology
... culture C. The pathogen from the pure culture must cause the disease when it is inoculated into a healthy; susceptible laboratory animal D. The pathogen must be isolated from the inoculated animal and must be shown to be the original organism E. Exceptions i. Microorganisms that cannot be grown on a ...
... culture C. The pathogen from the pure culture must cause the disease when it is inoculated into a healthy; susceptible laboratory animal D. The pathogen must be isolated from the inoculated animal and must be shown to be the original organism E. Exceptions i. Microorganisms that cannot be grown on a ...
Prokaryotes- most numerous living organism group
... • Binary fission- clones-results in two identical cells – Mutations can occur in copying of DNA ...
... • Binary fission- clones-results in two identical cells – Mutations can occur in copying of DNA ...
A. Antonie van Leeuwenhoek B. Edward Jenner C. Francesco Redi
... ____ A process where one microorganism inhibits or prevents the growth of another. ____ A symbiosis where both groups benefit. 18. Which of the following is not one of Koch’s postulates? 1pt (a) The same pathogen must be present in every case of the disease. (b) The pathogen must be isolated and gro ...
... ____ A process where one microorganism inhibits or prevents the growth of another. ____ A symbiosis where both groups benefit. 18. Which of the following is not one of Koch’s postulates? 1pt (a) The same pathogen must be present in every case of the disease. (b) The pathogen must be isolated and gro ...
lecture3-host
... Virulence is measured by the Lethal dose 50 (LD50) which is the number of organisms or mg. of toxins that will kill 50% of susceptible lab. animal – usually mice – when injected into such animal. When the LD 50 is small, the microorganism is considered highly virulent and when it is high the organis ...
... Virulence is measured by the Lethal dose 50 (LD50) which is the number of organisms or mg. of toxins that will kill 50% of susceptible lab. animal – usually mice – when injected into such animal. When the LD 50 is small, the microorganism is considered highly virulent and when it is high the organis ...
Contribution of the outer surface proteins of Borrelia
... However, some strains lack the expression of OspA and OspB, but express a smaller 21 to 25 kD OspC protein instead. This thesis focuses on the importance of these proteins in the pathogenesis of Lyme disease. Biochemical and immunochemical studies of the OspA and OspB proteins from strains of variou ...
... However, some strains lack the expression of OspA and OspB, but express a smaller 21 to 25 kD OspC protein instead. This thesis focuses on the importance of these proteins in the pathogenesis of Lyme disease. Biochemical and immunochemical studies of the OspA and OspB proteins from strains of variou ...
Exam 2
... vancomycin: inhibition of cell wall synthesis in Gram-negative bacteria (b) aminoglycosides: binding to 30S ribosomal subunit and blocking of protein synthesis (c) isoniazid: inhibition of mycolic acid synthesis ...
... vancomycin: inhibition of cell wall synthesis in Gram-negative bacteria (b) aminoglycosides: binding to 30S ribosomal subunit and blocking of protein synthesis (c) isoniazid: inhibition of mycolic acid synthesis ...
Vocabulary Chapter 11 Prokaryotes Monera Another name given to
... Example: Soybean plants contain nodules in their roots. nitrogen cycle The process in which nitrogen moves through the environment in various forms pathogen Anything that can cause a disease Examples: Bacteria, fungi ,and toxic substances are all considered pathogens. immunity Resistance to disease ...
... Example: Soybean plants contain nodules in their roots. nitrogen cycle The process in which nitrogen moves through the environment in various forms pathogen Anything that can cause a disease Examples: Bacteria, fungi ,and toxic substances are all considered pathogens. immunity Resistance to disease ...
Lowy-Concepts_of_ID
... John Snow, M.D. (1813--1858), a legendary figure in epidemiology, provided one of the earliest examples of using epidemiologic methods to identify risk for disease and recommend preventive action (1). Best known for his work in anesthesiology, Snow also had an interest in cholera and supported the u ...
... John Snow, M.D. (1813--1858), a legendary figure in epidemiology, provided one of the earliest examples of using epidemiologic methods to identify risk for disease and recommend preventive action (1). Best known for his work in anesthesiology, Snow also had an interest in cholera and supported the u ...
Microbial physiology
... rapidly move around the cell by polar polymerisation of host actin: comet-like structure (3). On collision with the cell membrane the bacterium forces its way into the neighboring cell where it lyses the double membrane compartment and the cycle is complete (4) ...
... rapidly move around the cell by polar polymerisation of host actin: comet-like structure (3). On collision with the cell membrane the bacterium forces its way into the neighboring cell where it lyses the double membrane compartment and the cycle is complete (4) ...
sample parent letter for meningitis - Cambria
... you about the dangers of meningococcal disease, commonly known as bacterial meningitis, a rare but potentially fatal infection that can occur among teenagers and college students. While meningococcal disease is rare and difficult to contract, it is very serious. There is now a vaccine that may help ...
... you about the dangers of meningococcal disease, commonly known as bacterial meningitis, a rare but potentially fatal infection that can occur among teenagers and college students. While meningococcal disease is rare and difficult to contract, it is very serious. There is now a vaccine that may help ...
Bacteria Strain Disease Clinical Manifestations Mode of
... enhance phag, bacterial growth and instruct adapative humoral response (IL-4/IL-10) (weak cell response) ...
... enhance phag, bacterial growth and instruct adapative humoral response (IL-4/IL-10) (weak cell response) ...
Lyme disease microbiology
Lyme disease, or borreliosis, is caused by spirochetal bacteria from the genus Borrelia, which has at least 37 known species, 12 of which are Lyme related, and an unknown number of genomic strains. Borrelia species known to cause Lyme disease are collectively known as Borrelia burgdorferi sensu lato.Borrelia are microaerophilic and slow-growing—the primary reason for the long delays when diagnosing Lyme disease—and have been found to have greater strain diversity than previously estimated. The strains differ in clinical symptoms and/or presentation as well as geographic distribution.Except for Borrelia recurrentis (which causes louse-borne relapsing fever and is transmitted by the human body louse), all known species are believed to be transmitted by ticks.