An integral consideration for the devel- opment and use of these models is host susceptibility – the intrinsic and extrinsic factors that have an impact on variable response to carcinogens: genetic variation, health status, life stage, lifestyle, sex, and the impact of co-exposures.
What are four 4 factors that influence the susceptibility of a host?
Susceptibility and response to an agent are influenced by factors such as genetic composition, nutritional and immunologic status, anatomic structure, presence of disease or medications, and psychological makeup.
What are the factors affecting susceptibility to infection?
We all have different susceptibility
Multiple innate factors (e.g., age, nutritional status, genetics, immune competency, and pre-existing chronic diseases) and external variables (e.g., concurrent drug therapy) influence the overall susceptibility of a person exposed to a virus.
What are the three 3 factors that affect the likelihood of infection occurring from a pathogen?
Common pathogen factors are immune evasion, high viral load and low infectious dose.
What are risk factors in epidemiology?
In epidemiology, a risk factor or determinant is a variable associated with an increased risk of disease or infection. Due to a lack of harmonization across disciplines, determinant, in its more widely accepted scientific meaning, is often used as a synonym.
What are the factors in host susceptibility of dengue fever?
The risk factors for DHF are infestation with Aedes mosquito, a hot and humid climate promoting mosquito breeding, mosquito density, the presence of all four serotypes of the dengue virus (DV) with secondary infection in the host, poor-quality water storage facilities in people’s homes, a high population density and
What are the 3 factors that cause disease?
Infectious diseases can be caused by:
Bacteria. These one-cell organisms are responsible for illnesses such as strep throat, urinary tract infections and tuberculosis.Viruses. Even smaller than bacteria, viruses cause a multitude of diseases ranging from the common cold to AIDS.Fungi. Parasites.
Which of the following are common risk factors for infection in older adults?
11 Risk Factors for Infections Among the Elderly
Diminished immune response.Advanced age.Malnutrition.The presence of multiple chronic diseases, a status that is often accompanied by many different medications.Cognitive deficits that may complicate compliance with basic sanitary practices, such as hand washing.
What is the susceptible host for tuberculosis?
Persons who have been Recently Infected with TB Bacteria
Persons who have immigrated from areas of the world with high rates of TB. Children less than 5 years of age who have a positive TB test. Groups with high rates of TB transmission, such as homeless persons, injection drug users, and persons with HIV infection.
What factors does not make an individual a susceptible host?
poorly developed or immature immunity, as in very young children. not being vaccinated. poor nutritional status (e.g. malnourished children) pregnancy.
Which of the following would be a virulence factor of a pathogen?
Factors that are produced by a microorganism and evoke disease are called virulence factors. Examples are toxins, surface coats that inhibit phagocytosis, and surface receptors that bind to host cells.
Which of the following are factors that can weaken the immune system of a host?
8 THINGS THAT WEAKEN YOUR IMMUNE SYSTEM
Your immune system helps your body fight off virus and pathogens to keep a variety of illnesses at bay. Lack of proper hygiene. Lack of fruits and vegetables in the diet. Stress. Smoking. Being overweight. Physical inactivity. Lack of sleep.
What is the definition of susceptible host?
SUSCEPTIBLE HOST
The person who is at risk for developing an infection from the disease.
What are the 5 risk factors?
Major Risk Factors
High Blood Pressure (Hypertension). High blood pressure increases your risk of heart disease, heart attack, and stroke. High Blood Cholesterol. One of the major risk factors for heart disease is high blood cholesterol. Diabetes. Obesity and Overweight. Smoking. Physical Inactivity. Gender. Heredity.
What are the 4 types of risk factors?
Some risk factors can be changed, such as unhealthy lifestyle habits and environments. Other risk factors, such as age , family history and genetics, race and ethnicity, and sex, cannot be changed. Healthy lifestyle changes as well as a healthy environment can decrease your risk for developing some diseases (NIH 2017).
What are behavioral risk factors?
Numerous lifestyle habits, identified as behavioral risk factors (BRFs), may increase NCD risk. These risk factors include overweight or obesity, smoking, physical inactivity, and risky alcohol consumption (2,4–8). Each of these risk factors alone can cause numerous health problems.
