Module 5 Flashcards
The study of disease, especially structural and functional changes that result from disease process.
Pathology
The study of relationships between the various factors that determine the frequency and distribution of diseases.
Epidemiology
A disease that is caused by a pathogen
Infectious Disease
If the infectious disease is transmissible from one human to another
Communicable Disease
A communicable disease that is easily transmitted from one person to another
Contagious Disease
Infectious Disease that humans acquire from animal sources
Zoonotic Disease
Number of new cases of that disease in a defined population during a specific time period
Incidence of a Particular Disease
The number of new cases of a particular disease that occured during a specified time period per a specifically defined population
Morbidity Rate
Identify the type of Prevalence
The number of cases of the disease existing in a given population during a specific time period
Period Prevalence
Identify the type of Prevalence
the number of cases of the disease existing in a given population at a particular moment in time
Point Prevalence
The ratio of the number of people who died of a particular disease during specified time period per a specified population
Mortality Rate
It occurs only occasionally within the population of a particular geographic area
Sporadic Disease
A disease that is always present within the population of a particular geographic area
Endemic Disease
A disease occuring in a higher than usual number of cases in a population during a given time interval
Epidemic Disease
A disease that is occuring in epidemic proportions in many countries simultaneously - sometimes worldwide
Pandemic Disease
Identify 3
Factors pertaining to the pathogen
- Virulence of the pathogen
- way for the pathogen to enter the body
- number of organisms that enter the body
The person who may become infected
Host
Identify 3
Factors pertaining to the Host
- Health Status
- Nutritional Status
- Other factors pertaining to the succeptibility of the host
Give 4
Factors pertaining to the environment
- Physical Factors
- Availability of appropriate reservoirs
- Sanitary and housing conditions
- Availability of potable water
Give 6
Components in the Infectious Disease Process
- There must be a pathogen
- There must be a source of pathogen
- There must be a portal of exit
- There must be a mode of transmission
- There must be a portal of entry
- There must be a susceptible host
Any site where the pathogen can multiply or merely survive until it is transferred to a host. It could be a living host or inanimate objects or materials.
Reservoir
A person who is colonized with a particular pathogen but the pathogen is not currently causing disase in that person
Carrier
Identify which type of Carrier
Carry the pathogen without ever having had the disease
Passive Carrier
Identify which type of Carrier
A person who is capable of transmitting a pathogen during the incubation period of a particular infectious disease
Incubatory Carrier
Identify which type of Carrier
Harbor and can transmit a particular pathogen while recovering from an infectious disease
Convalescent Carrier
Identify which type of Carrier
Have completely recovered from the disease, but continue to harbor the pathogen indefinitely
Active Carrier
Give 5
Non-living Reservoirs
- Air
- Dust
- Food and Milk
- Water
- Fomites
Give 7
Ways how infectious diseases are transmitted from person-person
- Direct skin to skin contact
- Direct mucous membrane to mucous membrane contact
- Indirectly by airborne droplets of respiratory secretions
- Indirectly by contamination of food and water by fecal material
- Indirectly by arthropod vector
- Indirectly by fomites that become contaminated by respiratory secretions, blood, urine, feces, vomitus or exudates from hospotalized patients
- Indirectly by transfusion of contaminated blood or blood products from an ill person by a parenteral injection
Identify the route of transmission or entry of this disease
Chickepox, colds, influenza, measles, staph and streph infections
also identify the route of Exit
skin discharge -> air -> respiratory tract
route of exit: Skin
Identify the route of transmission or entry of this disease
Impetigo, eczema, boils, warts, syphilis
also identify the route of exit
Skin to skin
route of exit: skin
Identify the route of transmission or entry of this disease
Colds, influenza, pneumonia, mumps, measles, chickenpox, tuberculosisa
also identify the route of exit
- Aerosol drop inhalation
- Nose or mouth - > hand or object - > nose
route od exit: Respiratory
Identify the route of transmission or entry of this disease
Gastroenteritis, hepatitis, salmonellosis, shigellosis, typhoid fever, cholera, giardasis, amoebiasis
also identify thr route of exit
- Feces - > hand -> Mouth
- Stool -> soil, food
- Water - > Mouth
Route of exit: Gastorintestinal
Identify the route of transmission or entry of this disease
Herpes, cold sore, infectious monocleosis, strep throat
Also identify the route of exit
Direct Salivary transfer
Route of Exit: Salivary
Identify the route of transmission or entry of this disease
Gonorrhea, herpes, Chlamydia infection, Cytomegalovirus infection, AIDS, syphilis, wartsa
also identify the route of exit
- Urethral of cervical secretions
- Semen
Route of exit: Genital Secretions
Identify the route of transmission or entry of this disease
Hepatitis B, cytomegalovirus infection, malaria, AIDS, Malaria relapsing fever
also identify the route of exit
- Transfusion of needlestick injury
- insect bite
route of exit: blood
Identify the route of transmission or entry of this disease
Rabies
Also identify the route of exit
Animal bite
route of exit: Zoonotic
Identify the route of transmission or entry of this disease
Tuleramia, anthrax
Also identify the route of exit
Contact with animal carcasses
Route of exit: Zoonotic
Identify the route of transmission or entry of this disease
Rocky mountain spotted fever, Lyme Disease, typhus, viral encephalitis, yellow fever, malaria, plague
Arthropod
Identify the vehicle for the following Diseases
Comphylobacter jejuni (bacterium)
Chickens
Identify the vehicle for the following Diseases
Cryptosporidium parvum (protozoan)
Drinking Water
Identify the vehicle for the following Diseases
Cyclospora cayetanesis (protozoan)
Drinking Water, raspberries
Identify the vehicle for the following Diseases
E. coli O15:H7 (bacterium)
Meats, produce contaminated by manure in growing fields (e.g. sprouts), drinking water
Identify the vehicle for the following Diseases
Giardia lamblia (aka Giardia intestinalis) (protozoan)
Drinking water
Identify the vehicle for the following Diseases
Listeria monocytogenes (bacterium)
Soft cheese and deli meats
Identify the vehicle for the following Diseases
Salmoella enteriditis (bacterium)
Eggs
Identify the vehicle for the following Diseases
Slamonella typhimurium DT-104 (bacterium)
Unspaturized milk
Identify the vehicle for the following Diseases
Shigella spp. (bacteria)
Drinking water
Identify the Animal reservoir from this viral disease
Avian Influenza
pathogen: an influezna virus
Birds
Identify the Animal reservoir from this viral disease
Equine Encephalitis
pathogen: Various arboviruses
Birds, small mammals
Identify the Animal reservoir from this viral disease
Hantavirus pulmonary syndrome
Pathogen: Hantaviruses
Rodents
Identify the Animal reservoir from this viral disease
Lassa Fever
pathogen: Lassa Virus
Wild rodents
Identify the Animal reservoir from this viral disease
Marburg Disease
pathogen: Marburg virus
Monkeys
Identify the Animal reservoir from this viral disease
Rabies
Pathogen: rabies virus
Rabid dogs, cats, skunks, foxes, wolves, racoonds, coyotes, bats
Identify the Animal reservoir from this viral disease
Yellow fever
pathogen: yellow fever virus
Monkeys
Identify the Animal reservoir from this viral disease
West nile virus encephalitis
pathogen: west nile virus
Birds
Identify the animal reservoir and pathogen (bacterial diseases)
Anthrax
Cattle, sheep, goats
pathogen: Baciillus anthracis
Identify the animal reservoir and pathogen (bacterial diseases)
Bovine tuberculosis
Cattle
Pathogn: Myobacterium bovis
Identify the animal reservoir and pathogen (bacterial diseases)
Brucellosis
Cattle, swine, goats
Pathogen: Brucella spp.
Identify the animal reservoir and pathogen (bacterial diseases)
Comphylobacter infection
Wild mammals, cattle, sheep, pets
Pathogen: Compylobacter spp.
Identify the animal reservoir and pathogen (bacterial diseases)
Cat-scratch disease
Domestic cats
pathogen: Bartonella henselae
Identify the animal reservoir and pathogen (bacterial diseases)
Ehrlichiosis
Deer, mice
Pathogen: Ehrlichia spp.
Identify the animal reservoir and pathogen (bacterial diseases)
Endemic typhus
Rodents
pathogens: Rickettsia typhi
Identify the animal reservoir and pathogen (bacterial diseases)
Leptospirosis
Cattle, rodents, dogs
Pathogen: Leptospira spp.
Identify the animal reservoir and pathogen (bacterial diseases)
Lyme disease
Deer, rodents
Pathogen: Borrelia burgdoferi
Identify the animal reservoir and pathogen (bacterial diseases)
Pasteurollosis
Oral cavities of animals
Pathogen: Pasteurella multocida
Identify the animal reservoir and pathogen (bacterial diseases)
Plague
Rodents
Pathogen: Yersinia pestis
Identify the animal reservoir and pathogen (bacterial diseases)
Psittacosis (ornithosis, parrot fever)
Parrots, parakeets, other per birds, pigeons, poultry
Pathogen: Chlamydophila psittaci
Identify the animal reservoir and pathogen (bacterial diseases)
Relpasing fever
Rodents
pathogen: Borrelia spp.
Identify the animal reservoir and pathogen (bacterial diseases)
Rickettsia pox
Rodents
pathogen: Rickettsia akari
Identify the animal reservoir and pathogen (bacterial diseases)
Rocky mountain spotted fever
Rodents, dogs
pathogen: Rickettsia rickettsii
Identify the animal reservoir and pathogen (bacterial diseases)
Salmonellosis
Poultry, livestock, reptiles
pathogen: Salmonella spp.