• Study Resource
  • Explore
    • Arts & Humanities
    • Business
    • Engineering & Technology
    • Foreign Language
    • History
    • Math
    • Science
    • Social Science

    Top subcategories

    • Advanced Math
    • Algebra
    • Basic Math
    • Calculus
    • Geometry
    • Linear Algebra
    • Pre-Algebra
    • Pre-Calculus
    • Statistics And Probability
    • Trigonometry
    • other →

    Top subcategories

    • Astronomy
    • Astrophysics
    • Biology
    • Chemistry
    • Earth Science
    • Environmental Science
    • Health Science
    • Physics
    • other →

    Top subcategories

    • Anthropology
    • Law
    • Political Science
    • Psychology
    • Sociology
    • other →

    Top subcategories

    • Accounting
    • Economics
    • Finance
    • Management
    • other →

    Top subcategories

    • Aerospace Engineering
    • Bioengineering
    • Chemical Engineering
    • Civil Engineering
    • Computer Science
    • Electrical Engineering
    • Industrial Engineering
    • Mechanical Engineering
    • Web Design
    • other →

    Top subcategories

    • Architecture
    • Communications
    • English
    • Gender Studies
    • Music
    • Performing Arts
    • Philosophy
    • Religious Studies
    • Writing
    • other →

    Top subcategories

    • Ancient History
    • European History
    • US History
    • World History
    • other →

    Top subcategories

    • Croatian
    • Czech
    • Finnish
    • Greek
    • Hindi
    • Japanese
    • Korean
    • Persian
    • Swedish
    • Turkish
    • other →
 
Profile Documents Logout
Upload
Widespread Outbreaks of a Subtle Condition Leading To
Widespread Outbreaks of a Subtle Condition Leading To

... unexplained increase in diagnoses which are described in Chapter R (signs and symptoms) of the International Classification of Disease (ICD) are associated with the increase in medical emergency admissions for the elderly [64-67] especially R00-09 (circulatory and respiratory) and R50-68 (general si ...
Guidelines - Public Health Association of Nebraska
Guidelines - Public Health Association of Nebraska

... <> Tuberculosis (TB) Program as follow-up to the screening mandated by US immigration law. The CDC and the Advisory Council for the Elimination of Tuberculosis (ACET) recommend screening high-risk populations for TB, including recent arrivals from areas of the world with a high prevalence ...
Hepatitis B
Hepatitis B

... • Hepatitis B is one of the most common causes of chronic liver disease and hepatocellular carcinoma worldwide. • Approximately one-third of the world’s population have serological evidence of past or current infection with hepatitis B and approximately 350–400 million people are chronic HBsAg carri ...
How to Document and Code for Hypertensive Diseases in ICD-10
How to Document and Code for Hypertensive Diseases in ICD-10

... relationship exists, if the patient has hypertension and develops chronic kidney disease, ICD10 presumes a cause and effect relationship and classifies the condition as hypertensive chronic kidney disease. Note, however, that if the chronic kidney disease came first, then the combination falls into ...
The role of anaerobic bacteria in cutaneous and soft tissue
The role of anaerobic bacteria in cutaneous and soft tissue

... Cutaneous and soft tissue abscesses and infected cysts infections are among the most common infections, and may sometimes lead to serious local and systemic complications. These infections can be potentially lifethreatening infections that may have rapid progress. Their early recognition and proper ...
Standard Infection Control Precautions
Standard Infection Control Precautions

... Standard Infection Control Precautions Why we have a procedure? Adherence to this procedure will ensure that Black Country Partnership Foundation Trust staff are protected as far as is reasonably practicable when providing care to patients with a known or suspected infection or when there is anticip ...
PARKINSON`S DISEASE GLOSSARY
PARKINSON`S DISEASE GLOSSARY

... Physician specializing in diseases and disorders of the brain, spinal cord, nerves and muscles, including stroke, Parkinson’s disease, epilepsy, Alzheimer’s disease and muscular dystrophy. ...
About Feline Infectious Peritonitis (FIP)
About Feline Infectious Peritonitis (FIP)

... Overt clinical signs may be apparent for a few days to a few months, but in retrospect may have been preceded by a long period of vague ill health and poor growth in kittens. Generally the effusive form progresses more rapidly than the non-effusive form. Clinical signs associated with the effusive ...
Infection Control Checklist
Infection Control Checklist

... and tuberculin skin tests (and annual follow-ups as required) as a condition of employment to ensure that employees are free from communicable diseases. Note: The employee health program may restrict the activities of employees and visitors. For example, persons with communicable diseases may be pro ...
Endemic Fungal Infections in Solid Organ Transplantation
Endemic Fungal Infections in Solid Organ Transplantation

... soil of the southwestern United States, particularly the San Joaquin Valley and Sonoran desert of southern California, Arizona and northern Mexico (30,31). Other regions of endemicity include New Mexico, western Texas and parts of Central and South America. Coccidioidomycosis, whether primary or rea ...
PREVENTING INFECTIONS How to Protect Your
PREVENTING INFECTIONS How to Protect Your

... Practices alone and warrant additional measures, based on specific routes of transmission and expected levels of contamination of the environment. For these infections, “Additional Precautions” (Contact, Droplet or Airborne) are instituted. As we strive to create a safer environment by limiting the ...
CRS Report for Congress
CRS Report for Congress

... encephalopathies have been identified. These diseases appear similar to each other on microscopic examination of the brain, but may differ in the way they are acquired, their clinical symptoms (such as dementia or insomnia), or their pattern of distribution throughout the world. Kuru is found only i ...
1. Manual on Point Prevalence Survey
1. Manual on Point Prevalence Survey

... Most HCAI becomes evident 48 hours (i.e., the typical incubation period) or more after admission. However, because the incubation period varies with the type of pathogen, nature of infection and the patient’s underlying conditions, each patient must be assessed individually for evidence that links i ...
ANNEX 1 Overview of Smallpox, Clinical Presentations, and Medical Care of
ANNEX 1 Overview of Smallpox, Clinical Presentations, and Medical Care of

... Transmission via contact with material from the smallpox pustules or crusted scabs can also occur, however, scabs are much less infectious than respiratory secretions presumably due to binding of the virions in the fibrin matrix of the scab. During the smallpox era, the disease had secondary househo ...
Epizootic Catarrhal Enteritis (ECE or “Green Slime Disease”) in Ferrets
Epizootic Catarrhal Enteritis (ECE or “Green Slime Disease”) in Ferrets

... tract characterized initially by lack of appetite, vomiting, and lethargy, followed by profuse green, mucous-covered diarrhea. Due to the characteristic diarrhea, this disease is often called "green slime disease." • Following the diarrhea phase, some ferrets recover with no further symptoms; other ...
Victoria General Hospital - Diagnostic Services Manitoba
Victoria General Hospital - Diagnostic Services Manitoba

... on updated CLSI breakpoints (M27-S4). Isolates tested and reported are from blood only. b For fluconazole, there is only a susceptible-dose dependent (SDD) breakpoint for C. glabrata. The percentage of C. glabrata isolates that tested SDD to fluconazole was 100%. Susceptibility of SDD isolates to ...
More Common Than You Think: Common Variable Immune Deficiency
More Common Than You Think: Common Variable Immune Deficiency

... 2, 4]. Diagnosis relies on serologic findings, characterized by antibodies to phase I and phase II antigens that result from lipopolysaccharide modifications. The most common manifestations include fever, headaches, myalgias, malaise, and hepatitis [1–6]. Thrombocytopenia occurs in ∼35% of the cases ...
Cytomegalovirus-Induced Necrotizing and Crescentic Glomerulonephritis in a Renal Transplant Patient
Cytomegalovirus-Induced Necrotizing and Crescentic Glomerulonephritis in a Renal Transplant Patient

... tion of negative serologies for CMV, hepatitis B, hepatitis C, toxoplasma, and human immunodeficiency virus (HIV). Epstein-Barr virus (EBV) antibody panel showed evidence of remote EBV infection. Medical history was otherwise remarkable only for reactive airway disease. Posttransplantation, the pati ...
Childrens infectious diseases
Childrens infectious diseases

... patient? A. Contact with a patient with Rubella in any term of pregnancy B. *Growth of titre of rubella antibodies at the repeated serological research, term of pregnancy up to 12 weeks C. Stable title of rubella antibodies at the repeated serological research, term of pregnancy up to 12 weeks D. Gr ...
Pneumococcal Vaccination Status for Older Adults
Pneumococcal Vaccination Status for Older Adults

... administered to adults age 65 and older: 13-valent pneumococcal conjugate vaccine (PCV13) and 23valent pneumococcal polysaccharide vaccine (PPSV23). The current CAHPS question does not specify whether both recommended vaccines were received and could imply that only one vaccine is needed. The curren ...
Isolation Policy - Gateshead Health NHS Foundation Trust
Isolation Policy - Gateshead Health NHS Foundation Trust

... Single on suite rooms with no antechamber Single rooms with no en suite or antechamber facilities. ...
Normal Values of Gallbladder Ejection Fraction Using 99mTc
Normal Values of Gallbladder Ejection Fraction Using 99mTc

... been measured at 30, 60, 90, or 120 min after the meal, with varying GBEF values (2). Therefore, it is essential to report GBEF value with a time reference, such as GBEF at the end of 30, 60, 90, or 120 min after the meal. In the present study, we demonstrated that the gender or BMI did not affect t ...
infection prevention and control guidance for ems providers
infection prevention and control guidance for ems providers

... and should be vaccinated against hepatitis B, seasonal influenza, measles, mumps, rubella, pertussis, and varicella. The Occupational Safety and Health Administration (OSHA) and the National Fire Protection Association (NFPA) also support these recommendations (West, 2009). Understanding the Importa ...
Yeast Infections - Patient Education Institute
Yeast Infections - Patient Education Institute

... fungus. The most common fungus that causes a yeast infection is called Candida. Yeast infections can affect many different parts of the body. These include the mouth, esophagus, vagina, and skin. Yeast infections can even affect the bloodstream. This reference summary will help you understand yeast ...
The Periodontal Disease Classification System of the
The Periodontal Disease Classification System of the

... The reported prevalence of periodontal disease varies depending on the criteria (depth of pockets or clinical attachment level and number of teeth involved), but it is generally accepted that 813% of North Americans have periodontal bone loss.3 Adult periodontitis has traditionally been defined as h ...
< 1 ... 27 28 29 30 31 32 33 34 35 ... 108 >

Compartmental models in epidemiology



The establishment and spread of infectious diseases is a complex phenomenon with many interacting factors, e.g., the environment in which the pathogen and hosts are situated, the population(s) it is exposed to, and the intra- and inter-dynamics of the population it is exposed to. The role of mathematical epidemiology is to model the establishment and spread of pathogens. A predominant method of doing so, is to use the notion of abstracting the population into compartments under certain assumptions, which represent their health status with respect to the pathogen in the system. One of the cornerstone works to achieve success in this method was done by Kermack and McKendrick in the early 1900s.These models are known as compartmental models in epidemiology, and serve as a base mathematical framework for understanding the complex dynamics of these systems, which hope to model the main characteristics of the system. These compartments, in the simplest case, can stratify the population into two health states: susceptible to the infection of the pathogen (often denoted by S); and infected by the pathogen (given the symbol I). The way that these compartments interact is often based upon phenomenological assumptions, and the model is built up from there. These models are usually investigated through ordinary differential equations (which are deterministic), but can also be viewed in more realistic stochastic framework (for example, the Gillespie model). To push these basic models to further realism, other compartments are often included, most notably the recovered/removed/immune compartment (denoted R).Once one is able to model an infectious pathogen with compartmental models, one can predict the various properties of the pathogen spread, for example the prevalence (total number of infected from the epidemic) and the duration of the epidemic. Also, one can understand how different situations may affect the outcome of the epidemic, e.g., what is the best technique for issuing a limited number of vaccines in a given population?
  • studyres.com © 2025
  • DMCA
  • Privacy
  • Terms
  • Report