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Questions and Answers
Which term describes the measure of disease occurrence in a population at a specific time?
What is the primary role of a reservoir in the context of infectious agents?
Which term best describes an individual who can transmit a pathogen during its incubation period?
Which of the following is NOT classified as an arthropod vector?
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What is the formula for calculating the attack rate in a population?
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Which of the following represents an example of artificial passive immunity?
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Which type of carrier is someone who has recovered from an illness but can still spread it?
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What component of the cycle of transmission refers to how an agent exits the reservoir?
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What does the term secondary prevention primarily focus on?
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Which phase of epidemiology focuses on linking illnesses to environmental factors?
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How can the chain of infection be interrupted?
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Which of the following represents a leading cause of death?
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What is emphasized by the Ecological Model in epidemiology?
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Which of the following is an example of passive immunity?
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What is the primary goal of tertiary prevention?
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Which of the following is not considered an environmental risk factor?
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What are the three major components of the Ecological Model?
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Which of the following is an example of direct exposure?
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What type of prevention targets individuals at high risk for developing extensive problems?
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Which of the following substances is classified as a stimulant?
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What are the three types of risk factors associated with health issues?
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Which prevention strategy is aimed at large groups not currently afflicted by a problem?
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What type of drug depresses the central nervous system?
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Which category do substances like glue and aerosol cans fall under?
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Which age group is particularly affected by balance issues and slower metabolism associated with drinking?
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Which legal substance is responsible for more than half of its user deaths?
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What is a common deterrent that prevents individuals from seeking treatment for substance use?
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What percentage of youth and young adults reported drug use in 2021?
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Which of the following is NOT one of the top three causes of unintentional injuries?
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What type of violence occurs between individuals?
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What does the Haddon Matrix address in relation to injury prevention?
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Which of the following is an example of community violence?
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Which of the following is a primary intervention to prevent drowning?
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What is a behavioral risk factor that increases the likelihood of motor vehicle accidents?
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What age group is most commonly associated with poisoning incidents?
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Which of the following methods can help prevent pediatric poisonings?
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Which factor is NOT considered a risk factor for drowning?
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What is a crucial prevention method for community violence?
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What is one critical action to support someone experiencing partner violence?
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Which of the following is NOT a method to prevent falls?
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Study Notes
Prevalence and Attack Rate
- Prevalence is the number or proportion of cases of a particular disease or condition present in a population at any given time.
- Prevalence is calculated by dividing the number of new cases by the number of cases within the year.
- Attack rate is the percentage of people who become ill in a population after exposure.
- Attack rate is calculated by dividing the number of sick people by the number of exposed people.
Chain of Infection
- The chain of infection describes the process of how an infectious agent spreads from one person to another.
- The chain of infection consists of six links: agent, reservoir, portal of exit, mode of transmission, portal of entry, and susceptible host.
- The chain of infection can be broken by reducing the susceptibility of the host, such as through vaccination, handwashing, and laws and regulations.
Types of Immunity
- Artificial passive immunity is immunity that results from the administration of antibodies from another animal against a dangerous pathogen.
- Examples of artificial passive immunity include antivenom and administering antibodies from another person.
- Passive immunity is immunity that is acquired by receiving pre-formed antibodies.
- Passive immunity can be natural, such as through breastfeeding, or artificial.
- Active immunity is immunity that is acquired through exposure to an antigen or vaccination.
Phases of the Ecological Model
- The ecological model is a framework for understanding the factors that influence health behaviors.
- The ecological model emphasizes the importance of multiple levels of influence, including individual, interpersonal, organizational, community, and policy levels.
- The ecological model can be used to design health promotion interventions that target multiple levels of influence.
Preventing Injuries
- The Haddon Matrix is a method to generate ideas about injury prevention that address the host, agent, and environment and their impact in the pre-event, event, and post-event phases of the injury process.
- The Haddon Matrix was originally designed for motor vehicle accidents.
- Primary prevention involves promoting healthy lifestyles through immunizations, encouraging exercise, and healthy nutrition.
- Secondary prevention involves detecting and treating diseases early.
- Tertiary prevention involves reducing the impact of a disease that is already in place.
Substance Abuse
- Stimulants stimulate the central nervous system.
- Examples of stimulants include cocaine, methamphetamine, nicotine, and Ritalin.
- Depressants depress the central nervous system.
- Examples of depressants include alcohol, barbiturates, Valium, Xanax, Prozac, and Thorazine.
- Inhalants are substances that are inhaled to produce mind-altering effects.
- Examples of inhalants include butyl nitrite, amyl nitrite, aerosol cans, glue, vapors, and pens.
- Narcotics are drugs that have a sedative effect.
- Examples of narcotics include Vicodin, Oxycontin, opium, morphine, methadone, meperidine, and heroin.
- Hallucinogens result in altered perception of reality.
- Examples of hallucinogens include LSD, PCP, psilocybin mushrooms, and peyote.
Leading Causes of Death
- The leading causes of death in the United States are heart disease, cancer, COVID-19, and accidents.
- The elderly are at higher risk for alcohol-related problems, including falls and slower metabolism.
- Tobacco is the most legal substance that contributes to more than half of its user deaths.
- Adolescents are the growing population that uses tobacco, making them a target audience for tobacco use reduction and vaping.
Unintentional injuries
- The top 3 causes of unintentional injuries, according to the CDC, are poisoning, falls, and motor vehicle accidents.
- The top 2 causes of intentional injuries, according to the CDC, are homicide and suicide.
- Gun laws can affect the number of homicides and suicides.
- The LGBTQ+ community, homeless people, migrants, prisoners, veterans, and refugees are all at risk for intentional injuries.
Preventing Drowning
- Primary interventions to prevent drowning include fencing pools, swimming lessons, and supervision.
- Secondary interventions to prevent drowning include making sure families know CPR.
- Risk factors for drowning include ages 1-4, ethnic groups, males, alcohol, lack of barriers and ability to swim, failures to wear life jackets, seizure disorder, and lack of supervision.
Violence
- Interpersonal violence occurs between two people.
- Family violence is emotional, physical, or sexual abuse of one family member by another.
- Examples of family violence include child abuse, partner abuse, and elder abuse.
- Community violence includes stranger violence and gang violence.
- Collective violence occurs when there is war between two nations or groups.
- Examples of collective violence include rape, terrorism, and gang war.
- The four types of violence are neglect, psychological, physical, and sexual.
- A priority action for someone experiencing partner violence is to create a safety plan.
- Prevention methods for partner violence include community support groups, training for law enforcement and healthcare professionals, and making sure women are provided access to safety.
- Prevention methods for community violence include providing better employment opportunities, job fairs, and conflict resolution.
Preventing Poisonings
- The top five poison exposures are cosmetics, personal care products, household products, medications, and homeopathic medications.
- Prevention methods for preventing poisonings include not sharing medications, labeling medications, proper disposal of medications, avoiding button batteries, and avoiding pesticides.
- Children under the age of six account for most poisonings.
Child Maltreatment
- Risk factors for child maltreatment include being younger than 4, being a part of the LGBTQ+ community, and having special needs that increase caregiver burden.
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Description
This quiz covers key concepts related to infectious diseases, including prevalence, attack rate, and the chain of infection. It also addresses types of immunity, providing a comprehensive overview of how infections spread and how immunity can be developed or enhanced. Test your understanding of these crucial public health fundamentals!