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Student Materials
Student Materials

... our increasingly overlapping habitats, humans and animals also share their respective microbiota and pathogens. While pathogens have evolved to infect a certain species or closely related species based on their physiology and genetics, there is occasional crossover to other species of similar physio ...
4/4/12 Epidemiology and Transmission
4/4/12 Epidemiology and Transmission

... 32.2 The Vocabulary of Epidemiology • A disease outbreak occurs when a number of cases of a disease are reported in a short period of time • Mortality is the incidence of death in a population • Morbidity of a disease refers to the incidence of disease including fatal and nonfatal diseases • Reserv ...
I. Introduction to class
I. Introduction to class

... 2,000 deaths/year. In U.S. minorities are heavily affected. Serious health problem in AIDS patients. One third of human population is infected. Causes over 3 million deaths/year.  Control: Tuberculin testing of humans and cattle. Chest X ray and treatment of infected individuals. BCG vaccine offers ...
Tracing Phylogeny
Tracing Phylogeny

... Similarities ...
Microbial Treatments for Residue Removal and Pathogen Control
Microbial Treatments for Residue Removal and Pathogen Control

... mixture of two compatible strains of saprophytic, nonpathogenic residue-degrading bacteria will be used. These bacteria are also antagonists of fungal plant pathogens. When spread on fields containing bluegrass residues, they should colonize and rapidly decompose the residues while also controlling ...
cross infection(1) - Fresh Men Dentists
cross infection(1) - Fresh Men Dentists

... Since a number of diseases can be transmitted during routine dental care, it is important to understand the principles behind the infection control recommendations of the CDC and OSAP. ...
CCH Poster1 - Workspace
CCH Poster1 - Workspace

... Malaria and lymphatic Filariasis pose the largest public health burden of all diseases worldwide. Recently, there has been an interest in undertaking an integrated control strategy targeting both diseases simultaneously. They often co-occur in the same regions and in the same individuals, so interve ...
Module 10 – Microbial Pathogenicity and Diseases
Module 10 – Microbial Pathogenicity and Diseases

... IgA proteases: destroy host IgA antibodies found in mucous secretions to allow adherence and passage at mucus membranes e.g. Neisseria species that infect CNS. ...
File
File

... and has a strong immune system, he may be able to fight off the agent. Whether or not a person gets sick depends on his immune system and the pathogen. It also depends on the environment. For example, if the susceptible host is in an environment where he is breathing contaminated air and is exposed ...
Fundamentals of Microbiology: Disease transmission
Fundamentals of Microbiology: Disease transmission

... – Disease that can be transmitted from humans to animals – Some very important environmentally transmitted diseases are zoonotic – Transmission cycles of many diseases go on naturally among animals until we blunder into the cycle ...
Bloodborne Pathogens - Stuart T. Wilson, CPA PC
Bloodborne Pathogens - Stuart T. Wilson, CPA PC

... Bloodborne Pathogens A blood borne pathogen is a microorganism that is present in human blood and can cause disease in humans. These pathogens are spread through contact with infectious body fluids, such as blood, semen, or vaginal secretions. They are not spread by coughing, sneezing, or casual co ...
Bloodborne Pathogens - Safety Session
Bloodborne Pathogens - Safety Session

... Place information such as date and/or safety slogan here Bloodborne Pathogens Bloodborne pathogens are microorganisms such as viruses or bacteria that are carried in blood and can cause disease in people. Examples are Malaria , Syphilis, Brucellosis, Hepatitis B (HBV), and Human Immunodeficiency Vir ...
Fall exam 2 MSII CLIs - LSH Student Resources
Fall exam 2 MSII CLIs - LSH Student Resources

... • HSV Type I and II and Varicella- Zoster crius (VZV) Encounter: • Almost all individuals become infected with HSV type I • Most infections are asymptomatic Entry: • HSV Acquired by direct contact. VSV is usually acquired from infectious aerosols Replication & spread: • Establish latent infections f ...
Pathogen Wanted Poster Research Project Bacterial Pathogens
Pathogen Wanted Poster Research Project Bacterial Pathogens

... Organism’s M.O. (police jargon) (How the organism attacks and spreads) Most common victims to prey upon & number of victims Hide out of the culprit (where it is most likely to be found and how it spreads) Most common injury done to victim Is it considered armed and dangerous? Rate the degree of dama ...
Bridging Taxonomic and Disciplinary Divides in Infectious Disease
Bridging Taxonomic and Disciplinary Divides in Infectious Disease

... or host barriers to infection, as well as the barriers that prevent outbreaks from developing, that likely result from complex pathways of ecological change. Using this knowledge for infection control or prevention will require understanding the population and community dynamics of the non-human and ...
Study Guide 13 - Host-Microbe Interactions
Study Guide 13 - Host-Microbe Interactions

... a. Exotoxins – toxic proteins produced by bacteria; often described according to their  activity  i. neurotoxin, enterotoxin, cytotoxin    b. Endotoxin  c. Example of exotoxin‐producing bacteria (table 17.1)  i. Clostridium botulinum (neurotoxin) (p. 657 ‐ 658)  ...
Chapter 14—Principles of Disease and Epidemiology.
Chapter 14—Principles of Disease and Epidemiology.

... 1. Soil, water, etc. b. Transmission of Disease. i. Contact Transmission. Fig. 6. 1. Direct Contact Transmission: Requires close association between an infected individual and a susceptible host. Also known as person-to-person transmission. a. Examples include touching, kissing, and sexual intercour ...
1. Discuss the contributions of Mayer.
1. Discuss the contributions of Mayer.

... evidence that viruses probably evolved from fragments of cellular nucleic acid. • Genetic material of different viral families is more similar to host genomes than to that of other viral families • Some viral genes are identical to cellular genes • Viruses of eukaryotes are more similar in genomic ...
Chapter 14
Chapter 14

... 1. Soil, water, etc. b. Transmission of Disease. i. Contact Transmission. Fig. 6. 1. Direct Contact Transmission: Requires close association between an infected individual and a susceptible host. Also known as person-to-person transmission. a. Examples include touching, kissing, and sexual intercour ...
Epidemiology Symbiotic Relationships
Epidemiology Symbiotic Relationships

... Plaque is a naturallyconstructed biofilm, in which the consortia of bacteria may reach a thickness of 300-500 cells on the surfaces of the ...
Parazitológia
Parazitológia

...  There begins to be a lack of people in traditional but always necessary disciplines for the fight against vector-borne diseases, as Medical Entomology and Medical Malacology, or even coprological methodology, needed for patient diagnosis in many diseases, mainly in endemic areas of developing coun ...
Unit 4a * Almost done!
Unit 4a * Almost done!

... • edema may constrict pharynx • bronchioles contract • death by asphyxiation may result ...
Communicable Disease Control in NC: The Laws, Principles, and
Communicable Disease Control in NC: The Laws, Principles, and

... – When necessary for control of a disease representing a significant public health hazard [GS 130A-143(4) and rule .0211] – When information is collected by a person other than a physician or nurse, it may not be protectable – Others as specified in GS 130A-143 ...
Bloodborne Pathogens
Bloodborne Pathogens

... Nausea Jaundice Darkened urine About 30% of infected people demonstrate no symptoms – Even though these people don’t display symptoms, they are still infectious ...
Emerging Foodborne Pathogens Dr. Jeff Farber, Health Canada
Emerging Foodborne Pathogens Dr. Jeff Farber, Health Canada

... cider Salad Lettuce Lake water Lake water Punch Infected food handler ...
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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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