Gordis Epidemiology 6th Edition Celentano Test Bank
g g g g g g
Chapter 01: Introduction
g g
Celentano:gGordisgEpidemiology,g6thgEditiong
TestgBank
MULTIPLEgCHOICE
1. Whichgofgthegfollowinggisgangexamplegofgtertiarygprevention?
a. Vaccinationgforgrotavirusgforgchildreng youngergthangthegagegofg1g year
b. Surgicalgamputationgofgangextremitygwithgosteosarcomag(bonegcancer)
c. Screeninggforggestationalgdiabetesgafterg24gweeksgofgpregnancy
d. Sexualgeducationgprogramgingelementarygschools
e. Increasinggtaxesgforgbuyinggcigarettesg
ANS:gB
Surgicalgamputationgofgangextremitygwithgosteosarcomag(bonegcancer)gisgangexamplegingwhichgw
hengagdiseasegisgpresentgthegtreatmentg(amputation)gisgdonegtogreducegthegimpactgofgdiseasegbygpr
eventinggthegtumorgfromgdissemination.gVaccinationgforgrotavirusgforgchildrengyoungergthangtheg
agegofg1gyear,gsexualgeducationgprogramgingelementarygschools,gandgincreasinggtaxesgforgbuyingg
cigarettesgrepresentgexamplesgofgprimarygprevention.gScreeninggforggestationalgdiabetesgafterg24
gweeksgofgpregnancygisgangexamplegofgsecondarygprevention.
2. Thisghistoricgcharactergob s erv edNtU
haRt gS
chIilN
dbGeT
dgB
fe.
veCrgO
mMortalit y gwasgmoregcommongamongg
womengtreatedgbygphysiciansgandgmedicalgstudentsgcomparedgwithgwomengtreatedgbygmidwi
ves.gBasedgonghisgobservations,ghegimplementedgaghandgwashgpolicygthatgresultedgingagdecreas
egingmortality.gNamegthegcharactergthatgwegaregtalkinggabout.
a. JohngSnow
b. EdwardgJenner
c. D.A.gHenderson
d. LeongGordis
e. IgnazgSemmelweis
g ANS:gE
IgnazgSemmelweisgidentifiedgthatgmedicalgstudentsgandgphysiciansgtransmittedgthegdiseasegbygn
otgwashinggtheirghandsgaftergexamininggbodiesgatgautopsiesgandgconductinggmultiplegexaminati
onsgingthegclinic.
3. ThanksgtogthegcontributionsgofgEdwardgJenner,gthegfollowinggdiseasegwasgeradicatedglaterg
bygeffortsgorganizedgbygD.A.gHenderson:
a. Cholera
b. Smallpox
c. Chickenpox
d. Polio
e. Zika
,ANS:gB
Smallpoxgwasgeradicatedging1980.gEdwardgJennergvaccinatedgJamesgPhippsging1796gagainstgs
mallpox.gAlmostg200gyearsglater,gthegWorldgHealthgOrganizationg(WHO)gcommissioned
D.A.gHendersongtogleadgthegeffortsgtogeradicategthegdisease.
4. Overgthegpastgcentury,gagmarkedgdeclinegingthegmortalitygratesgofgmanyginfectiousgdiseasesgh
asgbeengobserved.gWhichgofgthegfollowinggisgthegmostglikelygreasongforgthegobservedgdeclineging
mortalitygratesgfromgcommonginfectiousgdiseases?
a. Developmentgofgpenicillin
b. Developmentgofginsulin
c. Developmentgofgvaccines
d. Improvementgingsocialgconditions
e. Worsegsanitationgandgunsafegwaterg
ANS:gD
Althoughgmedicalgtreatmentsgpotentiallyghelpedgingthegdecreasegofginfectiousgdiseases,gthega
dvancementgingsocialgconditionsgplayedgagmajorgrole.gThesegimprovementsgincludegbettergsa
nitation,gsafegdisposalgofgwaste,gbettergnutrition,gandgimprovementginghousinggconditions.
,Chapter 02: The Dynamics of Disease Transmission
g g g g g g
Celentano:gGordisgEpidemiology,g6thgEditiongMULTIPL
EgCHOICE
1. Whichgtermgmostgaccuratelygdescribesgthegfollowinggdefinition?g“Thegoccurrencegingagcom
munitygorgregiongofgcasesgofgangillness,gspecificghealth-relatedgbehavior,gorgotherghealth-
relatedgeventsgclearlygingexcessgofgnormalgexpectancy.”g[PortagM,ged.gAgDictionarygofgEpidemi
ology.gNewgYork:gOxfordgUniversitygPress;g2014.]
a. Endemic
b. Epidemic
c. Pandemic
d. Attackgrate
e. Incubationgperiod
g ANS:gB
Angepidemicgisgthegoccurrencegofghealth-
relatedgeventsgingagcommunitygorgregion,gingcleargexcessgofgnormalgexpectation.gEndemicgisgnot
gtruegbecausegitgisgdefinedgasgthegconstantgoccurrencegofgagdisease,gdisorder,gorgnoxiousginfectio
usgagentgingaggeographicgareagorgpopulationggroup.gPandemicgisgnotgtruegbecausegitgisgdefinedgas
gangepidemicgoccurringgoverga
NgRgIgGgB.C
verygwidegarea,gcrossingginternationUalgbSo u nNd a rTi e s , gandOusuallygaffectinggaglargegnumbergof
people.gAttackgrategisgnotgtruegbecausegitgisgdefinedgasgnumbergofgpeoplegatgriskgingwhomgagcerta
ingillnessgdevelopsgovergtotalgnumbergofgpeoplegatgrisk.gIncubationgperiodgisgnotgtruegbecausegitg
isgthegintervalgfromgreceiptgofginfectiongtogthegtimegofgonsetgofgclinicalgillnessg(thegonsetgofgreco
gnizablegsymptoms).
2. Whatgisgthegmostgaccurategdefinitiongofgthegincubationgperiodg(ofganginfectiousgdisease)?
a. Thegtimegofgonsetgofgclinicalgillnessgorgthegonsetgofgrecognizablegsymptoms
b. Thegintervalgfromgreceiptgofginfectiongtogthegtimegofgonsetgofgclinicalgillnessg(thegonsetgofgr
ecognizablegsymptoms)
c. Thegtimegofginvasiongbyganginfectiousgagent
d. Thegtimegbetweenginitiationgofginfectiongandgfirstgsheddinggorgexcretiongofgthegagent
e. Thegperiodgbetweengexposuregandgthegonsetgofginfectiousnessg
ANS:gB
Thegincubationgperiodgisgdefinedgasgthegintervalgfromgreceiptgofginfectiongtogthegtimegofgonsetgof
gclinicalgillnessg(thegonsetgofgrecognizablegsymptoms);gingothergwords,gthegtimegbetweengthegmo
mentgofgdevelopinggsymptomsgandgthegmomentgofginvasiongbyganginfectiousgagent.g“Thegtimego
fgonsetgofgclinicalgillnessgorgthegonsetgofgrecognizablegsymptoms”gisgnotgtruegasgitgcorrespondsgt
og“timegofgonset.”g“Thegtimegofginvasiongbyganginfectiousgagent”gisgnotgtruegasgitgcorrespondsgtog
“timegofginfection.”g“Thegtimegbetweenginitiationgofginfectiongandgfirstgsheddinggorgexcretiongof
gthegagent”gandg“Thegperiodgbetweengexposuregandgthegonsetgofginfectiousness”garegnotgtruegasgt
heygcorrespondgtogtheglatentgperiod.g(Theglatentgperiodgis
, focusinggongthegonsetgofginfectiousness,gbutgthegincubationgperiodgisgfocusinggongthegonsetgofgth
egsymptom.)
3. TheregwasgagfoodgpoisoninggoutbreakgongAprilg1,g2018,gatgthegCitygZgFoodgSafetygConferenc
e.gTheregwereg1,000gpeoplegregisteredgforgthegconferencegwithgluncheon,g100gvolunteersgtoghost
gattendees,gandg50gpeoplegwhogservedgthegluncheongduringgthegconference.gExceptgforg50gpeopl
egwhogservedgthegfood,gallgofgthegparticipantsgandgvolunteersgategthegfoodgfromgthegluncheongatgt
hegconferencegongAprilg1,g2018.gBasedgonlygongtheginformationggivengingthisgquestion,ghowgman
ygpeoplegaregatgriskgingthisgfoodgpoisoninggoutbreak?
a. 1,000
b. 1,100
c. 1,150
d. 150
e. 50gA
NS:gB
Peoplegatgriskgingthisgoutbreakgaregpeoplegwhogweregexposedgtogthegfoodgatgthegconference.gEve
ngthoughg1,150gpeoplegweregatgthegconference,g50gpeoplegwhogservedgthegfoodgdidgnotgeatgthegfo
od.gThereforegweghavegtogexcludegthoseg50gpeople.
4. TheregwasgagfoodgpoisoninggoutbreakgongAprilg1,g2018,gatgthegCitygZgFoodgSafetygConfere
nce.gTheregwereg1,000gpeoplegregisteredgforgthegconferencegwithgluncheon,g100gvolunteersgtog
hostgattendees,gandg50gpeoplegwhogservedgthegluncheongduringgthegconference.
Exceptgforg50gpeoplegwhogservedgtNhU
egR odI,gN
foS alG
lgoTfgB
th.
egC
p aOr tMic i p a n t s gandgvolunteersgategthegfoodgfro
mgthegluncheongatgthegconferencegongAprilg1,g2018.gAfterganginitialgoutbreakgofgfoodgpoisoningg
isgreported,gangepidemiologistgsendsgsurveysgtogallgpeoplegatgriskgtoginvestigategthe
cause.gHowever,gonlyg900gpeoplegamonggthosegatgriskganswergthegsurvey.gAfterganalysisgofg900
gsurveygresults,gthegepidemiologistgconcludesgthatgthegmostgsuspectedgfoodsgingthegoutbreakgareg
pepperonigpizzagandgmeatballgspaghetti.gWhatgisgthegoverallgattackgrategforgthosegwhogategmeatb
allgspaghetti?gUsegthegfollowinggtablegtoganswergthegquestion.
SummarygofgSurveygResponses
Numbergofgpeoplegwhogdevelo Numbergofgpeoplegwhogategthegf
pedgthegcasegdefinitiongsympto ood
ms
Pepperonigpizzagonly 113 275
Meatballgspaghettigonly 62 375
Bothgpepperonigpizzagandgmeat 57 150
ballgspaghetti
Neithergofgpepperonigpizzagorgm 10 100
eatballgspaghetti
a. 41%
b. 38%
c. 27%
g g g g g g
Chapter 01: Introduction
g g
Celentano:gGordisgEpidemiology,g6thgEditiong
TestgBank
MULTIPLEgCHOICE
1. Whichgofgthegfollowinggisgangexamplegofgtertiarygprevention?
a. Vaccinationgforgrotavirusgforgchildreng youngergthangthegagegofg1g year
b. Surgicalgamputationgofgangextremitygwithgosteosarcomag(bonegcancer)
c. Screeninggforggestationalgdiabetesgafterg24gweeksgofgpregnancy
d. Sexualgeducationgprogramgingelementarygschools
e. Increasinggtaxesgforgbuyinggcigarettesg
ANS:gB
Surgicalgamputationgofgangextremitygwithgosteosarcomag(bonegcancer)gisgangexamplegingwhichgw
hengagdiseasegisgpresentgthegtreatmentg(amputation)gisgdonegtogreducegthegimpactgofgdiseasegbygpr
eventinggthegtumorgfromgdissemination.gVaccinationgforgrotavirusgforgchildrengyoungergthangtheg
agegofg1gyear,gsexualgeducationgprogramgingelementarygschools,gandgincreasinggtaxesgforgbuyingg
cigarettesgrepresentgexamplesgofgprimarygprevention.gScreeninggforggestationalgdiabetesgafterg24
gweeksgofgpregnancygisgangexamplegofgsecondarygprevention.
2. Thisghistoricgcharactergob s erv edNtU
haRt gS
chIilN
dbGeT
dgB
fe.
veCrgO
mMortalit y gwasgmoregcommongamongg
womengtreatedgbygphysiciansgandgmedicalgstudentsgcomparedgwithgwomengtreatedgbygmidwi
ves.gBasedgonghisgobservations,ghegimplementedgaghandgwashgpolicygthatgresultedgingagdecreas
egingmortality.gNamegthegcharactergthatgwegaregtalkinggabout.
a. JohngSnow
b. EdwardgJenner
c. D.A.gHenderson
d. LeongGordis
e. IgnazgSemmelweis
g ANS:gE
IgnazgSemmelweisgidentifiedgthatgmedicalgstudentsgandgphysiciansgtransmittedgthegdiseasegbygn
otgwashinggtheirghandsgaftergexamininggbodiesgatgautopsiesgandgconductinggmultiplegexaminati
onsgingthegclinic.
3. ThanksgtogthegcontributionsgofgEdwardgJenner,gthegfollowinggdiseasegwasgeradicatedglaterg
bygeffortsgorganizedgbygD.A.gHenderson:
a. Cholera
b. Smallpox
c. Chickenpox
d. Polio
e. Zika
,ANS:gB
Smallpoxgwasgeradicatedging1980.gEdwardgJennergvaccinatedgJamesgPhippsging1796gagainstgs
mallpox.gAlmostg200gyearsglater,gthegWorldgHealthgOrganizationg(WHO)gcommissioned
D.A.gHendersongtogleadgthegeffortsgtogeradicategthegdisease.
4. Overgthegpastgcentury,gagmarkedgdeclinegingthegmortalitygratesgofgmanyginfectiousgdiseasesgh
asgbeengobserved.gWhichgofgthegfollowinggisgthegmostglikelygreasongforgthegobservedgdeclineging
mortalitygratesgfromgcommonginfectiousgdiseases?
a. Developmentgofgpenicillin
b. Developmentgofginsulin
c. Developmentgofgvaccines
d. Improvementgingsocialgconditions
e. Worsegsanitationgandgunsafegwaterg
ANS:gD
Althoughgmedicalgtreatmentsgpotentiallyghelpedgingthegdecreasegofginfectiousgdiseases,gthega
dvancementgingsocialgconditionsgplayedgagmajorgrole.gThesegimprovementsgincludegbettergsa
nitation,gsafegdisposalgofgwaste,gbettergnutrition,gandgimprovementginghousinggconditions.
,Chapter 02: The Dynamics of Disease Transmission
g g g g g g
Celentano:gGordisgEpidemiology,g6thgEditiongMULTIPL
EgCHOICE
1. Whichgtermgmostgaccuratelygdescribesgthegfollowinggdefinition?g“Thegoccurrencegingagcom
munitygorgregiongofgcasesgofgangillness,gspecificghealth-relatedgbehavior,gorgotherghealth-
relatedgeventsgclearlygingexcessgofgnormalgexpectancy.”g[PortagM,ged.gAgDictionarygofgEpidemi
ology.gNewgYork:gOxfordgUniversitygPress;g2014.]
a. Endemic
b. Epidemic
c. Pandemic
d. Attackgrate
e. Incubationgperiod
g ANS:gB
Angepidemicgisgthegoccurrencegofghealth-
relatedgeventsgingagcommunitygorgregion,gingcleargexcessgofgnormalgexpectation.gEndemicgisgnot
gtruegbecausegitgisgdefinedgasgthegconstantgoccurrencegofgagdisease,gdisorder,gorgnoxiousginfectio
usgagentgingaggeographicgareagorgpopulationggroup.gPandemicgisgnotgtruegbecausegitgisgdefinedgas
gangepidemicgoccurringgoverga
NgRgIgGgB.C
verygwidegarea,gcrossingginternationUalgbSo u nNd a rTi e s , gandOusuallygaffectinggaglargegnumbergof
people.gAttackgrategisgnotgtruegbecausegitgisgdefinedgasgnumbergofgpeoplegatgriskgingwhomgagcerta
ingillnessgdevelopsgovergtotalgnumbergofgpeoplegatgrisk.gIncubationgperiodgisgnotgtruegbecausegitg
isgthegintervalgfromgreceiptgofginfectiongtogthegtimegofgonsetgofgclinicalgillnessg(thegonsetgofgreco
gnizablegsymptoms).
2. Whatgisgthegmostgaccurategdefinitiongofgthegincubationgperiodg(ofganginfectiousgdisease)?
a. Thegtimegofgonsetgofgclinicalgillnessgorgthegonsetgofgrecognizablegsymptoms
b. Thegintervalgfromgreceiptgofginfectiongtogthegtimegofgonsetgofgclinicalgillnessg(thegonsetgofgr
ecognizablegsymptoms)
c. Thegtimegofginvasiongbyganginfectiousgagent
d. Thegtimegbetweenginitiationgofginfectiongandgfirstgsheddinggorgexcretiongofgthegagent
e. Thegperiodgbetweengexposuregandgthegonsetgofginfectiousnessg
ANS:gB
Thegincubationgperiodgisgdefinedgasgthegintervalgfromgreceiptgofginfectiongtogthegtimegofgonsetgof
gclinicalgillnessg(thegonsetgofgrecognizablegsymptoms);gingothergwords,gthegtimegbetweengthegmo
mentgofgdevelopinggsymptomsgandgthegmomentgofginvasiongbyganginfectiousgagent.g“Thegtimego
fgonsetgofgclinicalgillnessgorgthegonsetgofgrecognizablegsymptoms”gisgnotgtruegasgitgcorrespondsgt
og“timegofgonset.”g“Thegtimegofginvasiongbyganginfectiousgagent”gisgnotgtruegasgitgcorrespondsgtog
“timegofginfection.”g“Thegtimegbetweenginitiationgofginfectiongandgfirstgsheddinggorgexcretiongof
gthegagent”gandg“Thegperiodgbetweengexposuregandgthegonsetgofginfectiousness”garegnotgtruegasgt
heygcorrespondgtogtheglatentgperiod.g(Theglatentgperiodgis
, focusinggongthegonsetgofginfectiousness,gbutgthegincubationgperiodgisgfocusinggongthegonsetgofgth
egsymptom.)
3. TheregwasgagfoodgpoisoninggoutbreakgongAprilg1,g2018,gatgthegCitygZgFoodgSafetygConferenc
e.gTheregwereg1,000gpeoplegregisteredgforgthegconferencegwithgluncheon,g100gvolunteersgtoghost
gattendees,gandg50gpeoplegwhogservedgthegluncheongduringgthegconference.gExceptgforg50gpeopl
egwhogservedgthegfood,gallgofgthegparticipantsgandgvolunteersgategthegfoodgfromgthegluncheongatgt
hegconferencegongAprilg1,g2018.gBasedgonlygongtheginformationggivengingthisgquestion,ghowgman
ygpeoplegaregatgriskgingthisgfoodgpoisoninggoutbreak?
a. 1,000
b. 1,100
c. 1,150
d. 150
e. 50gA
NS:gB
Peoplegatgriskgingthisgoutbreakgaregpeoplegwhogweregexposedgtogthegfoodgatgthegconference.gEve
ngthoughg1,150gpeoplegweregatgthegconference,g50gpeoplegwhogservedgthegfoodgdidgnotgeatgthegfo
od.gThereforegweghavegtogexcludegthoseg50gpeople.
4. TheregwasgagfoodgpoisoninggoutbreakgongAprilg1,g2018,gatgthegCitygZgFoodgSafetygConfere
nce.gTheregwereg1,000gpeoplegregisteredgforgthegconferencegwithgluncheon,g100gvolunteersgtog
hostgattendees,gandg50gpeoplegwhogservedgthegluncheongduringgthegconference.
Exceptgforg50gpeoplegwhogservedgtNhU
egR odI,gN
foS alG
lgoTfgB
th.
egC
p aOr tMic i p a n t s gandgvolunteersgategthegfoodgfro
mgthegluncheongatgthegconferencegongAprilg1,g2018.gAfterganginitialgoutbreakgofgfoodgpoisoningg
isgreported,gangepidemiologistgsendsgsurveysgtogallgpeoplegatgriskgtoginvestigategthe
cause.gHowever,gonlyg900gpeoplegamonggthosegatgriskganswergthegsurvey.gAfterganalysisgofg900
gsurveygresults,gthegepidemiologistgconcludesgthatgthegmostgsuspectedgfoodsgingthegoutbreakgareg
pepperonigpizzagandgmeatballgspaghetti.gWhatgisgthegoverallgattackgrategforgthosegwhogategmeatb
allgspaghetti?gUsegthegfollowinggtablegtoganswergthegquestion.
SummarygofgSurveygResponses
Numbergofgpeoplegwhogdevelo Numbergofgpeoplegwhogategthegf
pedgthegcasegdefinitiongsympto ood
ms
Pepperonigpizzagonly 113 275
Meatballgspaghettigonly 62 375
Bothgpepperonigpizzagandgmeat 57 150
ballgspaghetti
Neithergofgpepperonigpizzagorgm 10 100
eatballgspaghetti
a. 41%
b. 38%
c. 27%
