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infectious diseases
infectious diseases

... Diseases caused by opportunistic pathogens are typically found among groups of the elderly, cancer patients receiving chemotherapy, or people who have AIDS, or someone on antibiotics, (all of whom may have a compromised immune system) Infection results when: a pathogen invades and begins to grow wit ...
modEs of tRansmIssIon REadIng
modEs of tRansmIssIon REadIng

... respiratory illness caused by an influenza virus that results in an annual epidemic. Every influenza season is different because the virus constantly mutates (changes). As a result, each year a new vaccine must be developed. The seasonal flu can cause serious disease and even death. On average, over ...
Mike Shaw - Institute for People and Technology
Mike Shaw - Institute for People and Technology

... Allows more laboratories to detect pathogens and thus increases the amount of surveillance data. Allows surveillance of more pathogens. Makes true Molecular Epidemiology possible. ...
Chain of Infectious Diseases
Chain of Infectious Diseases

... • Host – What’s causing the infection? • Reservoir - The natural habitat of an infectious agent; Place where an infectious agent normally lives and multiplies. • Place of Exit - Way to leave the reservoir. • Methods of Transmission – How the agent is transmitted to the host direct or indirect or air ...
Host–Microbe Relationships and Dispersion of Microbes
Host–Microbe Relationships and Dispersion of Microbes

... Outbreaks of disease may occur periodically in relation to changes in the environment, changes in hosts, genetic change in the microbe itself, or a combination of factors For example, each year, outbreaks of influenza result in about 30,000 deaths. However, the severity may differ over time as diffe ...
Allan roadmap_GC1_2006
Allan roadmap_GC1_2006

... Is Increasing • Human activities continue to cause environmental disruptions that can potentially favor new disease emergence • Most pathogens evolve rapidly • Global travel facilitates rapid spread The 1918 influenza affected 20-40 million people, and had a 5% mortality rate. Ebola has an 80% morta ...
2010 Steve Bellan and the NSF/DIMACS Advanced Study Institute
2010 Steve Bellan and the NSF/DIMACS Advanced Study Institute

... – We measure disease parameters at the level of individuals – We are interested in results at the level of populations – Models are essential for linking these scales because they explicitly account for dependence of individuals (inherent in infection processes) ...
07_Pathogenicity_and_virulence - IS MU
07_Pathogenicity_and_virulence - IS MU

... Primary and opportune pathogens Primary (obligate) pathogens → disease also in otherwise healthy individuals: chiefly agents of classical infections (diphtheria, typhoid fever, plague, gonorrhea, tetanus, influenza, morbilli etc.) Opportunistic (facultative) pathogens → disease under certain condit ...
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Immunity and Infection Sexually Transmitted Diseases`

... Other Herpes virus infections Viral encephalitis Viral Hepatitis Poliomyelitis Rabies Warts ...
PPT - Ecology Courses
PPT - Ecology Courses

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Common Infectious Disease Review
Common Infectious Disease Review

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GC1 roadmap_2005_Allan
GC1 roadmap_2005_Allan

... to get up Paley's Evidences of Christianity, and his Moral Philosophy. . . The logic of this book and as I may add of his Natural Theology gave me as much delight as did Euclid. The careful study of these works, without attempting to learn any part by rote, was the only part of the Academical Course ...
Viral and cellular microarray-based studies (virogenomics)
Viral and cellular microarray-based studies (virogenomics)

... impairing the host, a broader array of targets for antiviral drug discovery would become available. This approach becomes viable if the virus-specific host-cell pathways can be determined. The recent successes achieved by using DNA-array technology to analyze virus-induced gene expression in host ce ...
Mathematical Models Describing the Interspecies Transmission of
Mathematical Models Describing the Interspecies Transmission of

... transmission and spatio-temporal spread of viruses among the human population of particular interest are the Zika Virus and the Ebola Virus. The Zika virus is a mosquito borne flavivirus that normally has ...
Chapter 13: Infection and Disease
Chapter 13: Infection and Disease

... • Infectious Diseases Can Be Transmitted in Several Ways • Direct contact methods involve close or personal contact with an infected person • Indirect contact methods can involve fomites • Epidemiologists Often Have to Identify the Reservoir of an Infectious Disease • Reservoirs are ecological niche ...
Infection Control Terms
Infection Control Terms

... Infection Cycle: • Infective Agent – pathogens include bacteria, viruses, funguses, rickettsiae, protozoa. • Reservoir – where causative agent can live. Includes the human body, animals, environment, and fomites or objects contaminated with infectious material that contains the pathogens. ...
Powerpoint file  - Centre for Microbial Diseases
Powerpoint file - Centre for Microbial Diseases

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Infectious Diseases Cloze Worksheet
Infectious Diseases Cloze Worksheet

... of the brain’s ‘thermostat’ from the normal 37oC up to higher temperatures such as 40oC. A person with a fever will sweat more to try to body temperature. The sick person may also become thirsty as water is lost by sweating. If too much body is lost in a short time, the person may experience ‘chills ...
Lecture #4
Lecture #4

... • If pathogen is host-specific overall density may not be best parameter, but density of susceptible host/race • In some cases opposite may be true especially if alternate hosts are taken into account ...
Pathogens Defence Mechanisms UNIT 11.4 Controlling infectious
Pathogens Defence Mechanisms UNIT 11.4 Controlling infectious

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Chapter 13 - eacfaculty.org
Chapter 13 - eacfaculty.org

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How does the immune system protect the body against disease?
How does the immune system protect the body against disease?

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Pathogenic Bacteriology - Cal State LA
Pathogenic Bacteriology - Cal State LA

... From the organisms point of view, the most successful pathogen is NOT the one that inflicts the most extensive damage on the host, but rather the one that can establish a balanced pathogenicity with the host. Parasites that kill the host will eventually lead to their own extinction. ...
Chapter 21: Infectious Diseases - Holy Trinity Diocesan High School
Chapter 21: Infectious Diseases - Holy Trinity Diocesan High School

... ii. Treatment: OTC, plenty of fluids, healthy diet c. Tattoos and Body Piercing: can cause viral or bacterial infections F. Epidemic Diseases ...
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Cross-species transmission

Cross-species transmission (CST) is the phenomenon of transfer of viral infection from one species, usually a similar species, to another. Often seen in emerging viruses where one species transfers to another which in turn transfers to humans. Examples include HIV-AIDS, SARS, Ebola, Swine flu, rabies, and Bird flu.The exact mechanism that facilitates the transfer is unknown, however, it is believed that viruses with a rapid mutation rate are able to overcome host-specific immunological defenses. This can occur between species that have high contact rates. It can also occur between species with low contact rates but usually through an intermediary species. Bats, for example, are mammals and can directly transfer rabies to humans through bite and also through aerosolization of bat salvia and urine which are then absorbed by human mucous membranes in the nose, mouth and eyes.Similarity between species, for example, transfer between mammals, is believed to be facilitated by similar immunological defenses. Other factors include geographic area, intraspecies behaviours, and phylogenetic relatedness. Virus emergence relies on two factors: initial infection and sustained transmission.
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