CDC- INTRODUCTION TO EPIDEMIOLOGY
QUESTIONS WITH CORRECT ANSWERS 2025
DefinitionMofMEpidemiologyM-MCORRECTMANSWERM-
TheMstudyMofMtheMdistributionMandMdeterminantsMofMhealth-
relatedMstatesMorMeventsMinMspecifiedMpopulations,MandMtheMapplicationMofMthisMstudyMtoMtheMco
ntrolMofMhealthMproblems.
TheMstudyMofMepidemiologyMusesM_______________M-MCORRECTMANSWERM-
statistics,Mobservation,Mbiology
FrequencyM-MCORRECTMANSWERM-
numberMofMhealthMeventsM(numberMofMcases)MinMrelationshipMtoMtheMsizeMofMtheMpopulation
PatternM-MCORRECTMANSWERM-theMoccurrenceMofMhealthMrelatedMeventsMbasedMon-
Time:M(annual,Mseasonal,Mweekly)
Place:M(urban/rural,Mschool/work)
Person:M(riskMofMillness,Msex,Mage,MeconomicMstatus)
DeterminantM-MCORRECTMANSWERM-
AMfactorMorMeventMthatMisMcapableMofMbringingMaboutMaMchangeMinMtheMhealthMstatusMofMaMpopul
ation.
WhatMdoMepidemiologistsMstudy?M-MCORRECTMANSWERM-BothMcommunicableMandMnon-
communicableMhealthMproblems
WhatMisManMepidemiologist'sMtopMpriorityMwhenMgivenMaMpatient?M-MCORRECTMANSWERM-
DetermineMtheMcause,MandMtheMnumberMofMpeopleMexposedMtoMitM(focusesMonMtheMpopulationMn
otMtheMspecificMpatient)
, 400MBCEM-MCORRECTMANSWERM-
HippocratesMtriesMtoMexplainMthatMenvironmentalMfactorsMandMbehaviorsMmightMinfluenceMdiseas
e
1662MCEM-MCORRECTMANSWERM-
JohnMGrauntMpublishesMtheMfirstMquantifiableMdataMforMmortalityMbetweenMdifferentMgroups
1800MCEM-MCORRECTMANSWERM-
WilliamMFarrM(theMfatherMofMviralMstatistics)MbuildsMonMGaunt'sMworkMbyMcollecting,Massembling,M
andMevaluatingMviralMstatisticMdata
1854MCEM-MCORRECTMANSWERM-
JohnMSnowM(fatherMofMfieldMepidemiology)MrealizesMthroughMdataMandMobservationMthatMtheMBro
adMStreetMpumpMwasMtheMsourceMofMaMcholeraMepidemic
EpidemiologistsMmustMassessMcommunityMhealthMbyMaskingM__________M-MCORRECTMANSWERM-
1.MWhatMareMsomeMpotentialMandMcurrentMhealthMproblemsMinMtheMcommunity?
2.MWhereMareMtheyMoccurring?
3.MAreMthereMspecificMpopulationsMwithMincreasedMrisk?
4.MWhichMproblemsMhaveMdeclinedMoverMtime?
5.MWhichMonesMareMincreasingMorMhaveMtheMpotentialMtoMincrease?
6.MHowMdoMtheseMpatternsMrelateMtoMdistributionMofMhealthMcare?
HowMdoMepidemiologistsMcompleteMtheMclinicalMpicture?M-MCORRECTMANSWERM-
TheyMcanMidentifyMtheMcauseMevenMifMtheMdiagnosisMisMunknownMtoMhelpMcategorizeMtheMdisease
PublicMHealthMSurveillanceM-MCORRECTMANSWERM-
theMsystematicMcollection,Manalysis,MandMinterpretationMofMhealthMdataMtoMgainMknowledgeMofMth
eMpatternMofMdiseaseMoccurrenceMinMorderMtoMcontrolMandMpreventMdiseaseMinMtheMcommunity.
QUESTIONS WITH CORRECT ANSWERS 2025
DefinitionMofMEpidemiologyM-MCORRECTMANSWERM-
TheMstudyMofMtheMdistributionMandMdeterminantsMofMhealth-
relatedMstatesMorMeventsMinMspecifiedMpopulations,MandMtheMapplicationMofMthisMstudyMtoMtheMco
ntrolMofMhealthMproblems.
TheMstudyMofMepidemiologyMusesM_______________M-MCORRECTMANSWERM-
statistics,Mobservation,Mbiology
FrequencyM-MCORRECTMANSWERM-
numberMofMhealthMeventsM(numberMofMcases)MinMrelationshipMtoMtheMsizeMofMtheMpopulation
PatternM-MCORRECTMANSWERM-theMoccurrenceMofMhealthMrelatedMeventsMbasedMon-
Time:M(annual,Mseasonal,Mweekly)
Place:M(urban/rural,Mschool/work)
Person:M(riskMofMillness,Msex,Mage,MeconomicMstatus)
DeterminantM-MCORRECTMANSWERM-
AMfactorMorMeventMthatMisMcapableMofMbringingMaboutMaMchangeMinMtheMhealthMstatusMofMaMpopul
ation.
WhatMdoMepidemiologistsMstudy?M-MCORRECTMANSWERM-BothMcommunicableMandMnon-
communicableMhealthMproblems
WhatMisManMepidemiologist'sMtopMpriorityMwhenMgivenMaMpatient?M-MCORRECTMANSWERM-
DetermineMtheMcause,MandMtheMnumberMofMpeopleMexposedMtoMitM(focusesMonMtheMpopulationMn
otMtheMspecificMpatient)
, 400MBCEM-MCORRECTMANSWERM-
HippocratesMtriesMtoMexplainMthatMenvironmentalMfactorsMandMbehaviorsMmightMinfluenceMdiseas
e
1662MCEM-MCORRECTMANSWERM-
JohnMGrauntMpublishesMtheMfirstMquantifiableMdataMforMmortalityMbetweenMdifferentMgroups
1800MCEM-MCORRECTMANSWERM-
WilliamMFarrM(theMfatherMofMviralMstatistics)MbuildsMonMGaunt'sMworkMbyMcollecting,Massembling,M
andMevaluatingMviralMstatisticMdata
1854MCEM-MCORRECTMANSWERM-
JohnMSnowM(fatherMofMfieldMepidemiology)MrealizesMthroughMdataMandMobservationMthatMtheMBro
adMStreetMpumpMwasMtheMsourceMofMaMcholeraMepidemic
EpidemiologistsMmustMassessMcommunityMhealthMbyMaskingM__________M-MCORRECTMANSWERM-
1.MWhatMareMsomeMpotentialMandMcurrentMhealthMproblemsMinMtheMcommunity?
2.MWhereMareMtheyMoccurring?
3.MAreMthereMspecificMpopulationsMwithMincreasedMrisk?
4.MWhichMproblemsMhaveMdeclinedMoverMtime?
5.MWhichMonesMareMincreasingMorMhaveMtheMpotentialMtoMincrease?
6.MHowMdoMtheseMpatternsMrelateMtoMdistributionMofMhealthMcare?
HowMdoMepidemiologistsMcompleteMtheMclinicalMpicture?M-MCORRECTMANSWERM-
TheyMcanMidentifyMtheMcauseMevenMifMtheMdiagnosisMisMunknownMtoMhelpMcategorizeMtheMdisease
PublicMHealthMSurveillanceM-MCORRECTMANSWERM-
theMsystematicMcollection,Manalysis,MandMinterpretationMofMhealthMdataMtoMgainMknowledgeMofMth
eMpatternMofMdiseaseMoccurrenceMinMorderMtoMcontrolMandMpreventMdiseaseMinMtheMcommunity.