Disease Masterclass Final Exam 2025 | Verified
Questions & Answers for A+
Used to take the morbidity as well as mortality into account when one is calculating the overall
burden of disease. - DALYs
include those that are specific to the host as well as to the environment, such as air pollution -
ecobiologic factors
causes respiratory effects particularly in people with asthma and other susceptible populations.
- sulfure dioxide
have been linked to respiratory effects. They particularly can affect people with asthma. -
nitrogen oxides
Pollution that comes from a discrete source such as a factory, hazardous waste site, or landfill.
The National Pollutant Discharge Elimination System Permit aims to regulate the amount and
type of discharge eliminated in public water systems in an effort to prevent pollution of our
waters. - point source
Pollution from a diffuse source. This includes runoff, which may come from agriculture sources,
construction, urban streets, or mines and may also result from airborne pollutant fallout. -
nonpoint source
Effectiveness of sewage treatment is often measured by diminishing the - biological
oxygen demand
is a preventive measure developed as a systematic approach to the identification, evaluation,
and control of food safety hazards. - HACCP
methodology that assists in evaluating the human health effects and environmental
consequences of exposure to chemicals. - risk assessment
The process of characterizing the relationship between the dose of a chemical and the severity
and incidence of adverse health effects in an exposed population. It must consider factors such
as the duration, frequency, and magnitude of exposure, as well as confounding issues such as
age, sex, and lifestyle factors. - dose-response assessment
, The development of a qualitative, semi-quantitative, or quantitative estimate of the risk
associated with a given chemical under a defined exposure scenario(s). The characterization
must attempt to encompass multiple populations with varying sensitivities and exposures.
Limitations and uncertainties must be identified so that all concerned parties understand the
strengths and weaknesses of the risk estimates. - risk characterization
1. The Zika virus is transmitted primarily by Aedes aegypti, the yellow fever mosquito. Ae.
aegypti is a tropical mosquito whose range in the United States is limited to the southern states.
However, the Asian tiger mosquito, Aedes albopictus is a potential vector for Zika, and it has a
much broader range in the United States than does Ae. aegypti. Which of the following would
NOT be an effective method to determine if Ae. albopictus might become an important vector
for Zika virus in the United States?
a. Test those infected with Zika to determine which species of mosquito caused infection.
b. Determine vectorial capacity.
c. Conduct laboratory tests of varying periods in which an Ae. albopictus mosquito feeds upon
an infected animal and then is allowed to feed upon uninfected animals to see how many
become infected with Zika.
d. Assess mortality rate of infected Ae. albopictus in laboratory experiments. - A
2. Models of Ebola virus transmission have demonstrated that the most important drivers in
maintaining viral transmission are person-to-person contact with ill individuals or contact with
the bodies of individuals who have died as a result of the disease. Which of the following would
NOT be an effective intervention plan to stop an Ebola epidemic?
a. Public education campaigns can be used to inform the population of the ways the virus is
transmitted and encourage them to reduce contact with bodies of persons who have died.
b. Making personal protective equipment (gloves, disposable gowns, surgical masks, etc.) widely
available to the population, allowing home caregivers to protect themselves.
c. Requiring the immediate burning of all deceased bodies infected with Ebola.
d. Encouraging individuals who are feeling sick to self-report to health care facilities that have
the capability of providing effective infection co - C
4. Over the past 30 years, the effects of lead have been well studied experimentally including
epidemiologic studies. Biologically based studies involving the absorption, distribution,
metabolism, elimination, and storage of lead are well known. It is further recognized that the
developing fetus and children with developing nervous systems are especially vulnerable to lead