WGU D115 OBJECTIVE ASSESSMENT (OA)
EXAM | NEWEST ACTUAL EXAM
COMPREHENSIVE QUESTIONS AND
VERIFIED ANSWERS GRADED A+ | 100%
PASS | 2025 UPDATE!
What are the four distinct phases of infectious disease? - ✔✔✔
Correct Answer > 1. Incubation Period - initial exposure to onset of
the first symptoms 2. Prodromal Stage - occurrence of initial symptoms
which are usually mild 3. Invasion Period- pathogen is multiplying
rapidly- the immune and inflammatory responses have been activated.
4. Convalescence- immune-inflammatory system removes infection,
symptoms subside...or disease could be fatal
How do multifactorial disease and single-gene disease differ? - ✔✔✔
Correct Answer > In contrast to most single-gene diseases, recurrence
risks for multifactional disease can change significantly from one
population to another because gene frequencies, as well as
environmental factors, can differ among populations.
What are some effective countermeasures for infectious disease
transmission? - ✔✔✔ Correct Answer > Control insect vector
population, modern sanitation facilities, clean water, vaccines.
, Define a gene-environment interaction? - ✔✔✔ Correct Answer > A
genetic condition that causes symptoms that is aggravated by
environmental sources. - Cystic fibrosis causes pulmonary edema which
is worsened by smoking.
What are some common diseases that are categorized as multifactorial
in nature? - ✔✔✔ Correct Answer > HTN, CAD, Cancers, Diabetes,
Obesity, Alzheimer's Disease
Describe some direct and indirect ways for transmission of infectious
diseases? - ✔✔✔ Correct Answer > Direct transmission is through
direct contact with infections of another person (fungal, skin lesions,
scabies, STIs, lice, herpes). Indirect transmission is through contact with
contaminated materials or surfaces.
Detail characteristics of HIV including causes, transmission, risks,
treatments, etc. - ✔✔✔ Correct Answer > - causes Acquired
Immodeficiency Syndrome (AIDS) - transmission-blood or blood
products, IV drug use, intercourse - major immunologic finding in AIDS
is the striking decrease in the number of CD4 + Th Cells. - Treatment for
HIV infection is a combination of drugs called highly active antiretroviral
therapy (HAART), that attacks different portions of the viral replication
pathway
How do the incidence and prevalence rate differ? - ✔✔✔ Correct
Answer > Incidence rate is the number of new cases of a disease
reported during a specific period, divided by the number of individuals
EXAM | NEWEST ACTUAL EXAM
COMPREHENSIVE QUESTIONS AND
VERIFIED ANSWERS GRADED A+ | 100%
PASS | 2025 UPDATE!
What are the four distinct phases of infectious disease? - ✔✔✔
Correct Answer > 1. Incubation Period - initial exposure to onset of
the first symptoms 2. Prodromal Stage - occurrence of initial symptoms
which are usually mild 3. Invasion Period- pathogen is multiplying
rapidly- the immune and inflammatory responses have been activated.
4. Convalescence- immune-inflammatory system removes infection,
symptoms subside...or disease could be fatal
How do multifactorial disease and single-gene disease differ? - ✔✔✔
Correct Answer > In contrast to most single-gene diseases, recurrence
risks for multifactional disease can change significantly from one
population to another because gene frequencies, as well as
environmental factors, can differ among populations.
What are some effective countermeasures for infectious disease
transmission? - ✔✔✔ Correct Answer > Control insect vector
population, modern sanitation facilities, clean water, vaccines.
, Define a gene-environment interaction? - ✔✔✔ Correct Answer > A
genetic condition that causes symptoms that is aggravated by
environmental sources. - Cystic fibrosis causes pulmonary edema which
is worsened by smoking.
What are some common diseases that are categorized as multifactorial
in nature? - ✔✔✔ Correct Answer > HTN, CAD, Cancers, Diabetes,
Obesity, Alzheimer's Disease
Describe some direct and indirect ways for transmission of infectious
diseases? - ✔✔✔ Correct Answer > Direct transmission is through
direct contact with infections of another person (fungal, skin lesions,
scabies, STIs, lice, herpes). Indirect transmission is through contact with
contaminated materials or surfaces.
Detail characteristics of HIV including causes, transmission, risks,
treatments, etc. - ✔✔✔ Correct Answer > - causes Acquired
Immodeficiency Syndrome (AIDS) - transmission-blood or blood
products, IV drug use, intercourse - major immunologic finding in AIDS
is the striking decrease in the number of CD4 + Th Cells. - Treatment for
HIV infection is a combination of drugs called highly active antiretroviral
therapy (HAART), that attacks different portions of the viral replication
pathway
How do the incidence and prevalence rate differ? - ✔✔✔ Correct
Answer > Incidence rate is the number of new cases of a disease
reported during a specific period, divided by the number of individuals
