questions and answers updated 2026
PrimaryBpreventionB-BAnswerpreventBtheBonsetBorBacquisitionBofBaBgivenBdisease.B
educationBandBcounseling
theBmostBeffectiveBformBofBhealthcare.
SecondaryBpreventionB-
BAnswertoBidentifyBandBtreatBasymptomaticBpersonsBwhoBhaveBriskBfactorsBforBaBgivenBdisea
seBorBinBpreclinicalBdisease.B
screening,B
BPBforBHTN
LipidBProfileBforBHLD
TertiaryBpreventionB-BAnswermanagementBofBanBestablishedBdisease.B
minimizeBdisease
medicationsBandBlifestyleBmodificationBtoBnormalizeB
aimedBatBimprovingBorBminimizingBdisease-relatedBsymptoms.
ActiveBimmunityBisBdefinedBasB-BAnswerresistanceBdevelopedBinBresponseBtoBanBantigen.
WhichBofBtheBfollowingBstatementsBbestBdescribesBzanamivirB(Relenza)BorBoseltamivirB(Tamiflu
)BuseBinBtheBcareBofBpatientsBwithBorBatBriskBforBinfluenza?B-
BAnswerInitiationBofBtherapyBearlyBinBacuteBinfluenzaBillnessBcanBhelpBminimizeBtheBseverityB
ofBdiseaseBwhenBtheBillnessBisBcausedBbyBaBnonresistantBviralBstrain.
PreventiveBServicesBRecommendedBbyBtheBUSPSTFB-BAnswer
,PreventiveBServicesBRecommendedBbyBtheBUSPSTFB2B-BAnswer
InBanBimmunocompetentBadult,BtheBlengthBofBincubationBforBtheBinfluenzaBvirusBisBonBavera
ge:B-BAnswer1-4Bdays
AdultsBpassBtheBillnessBonB1BdayBbeforeBtheBonsetBofBsymptomsBandBcontinueBtoBremainBin
fectiousBforBapproximatelyB5BdaysBafterBtheBonsetBofBtheBillness.BChildrenBremainBinfectiousB
forB10BorBmoreBdaysBafterBtheBonsetBofBsymptomsBandBcanBshedBtheBvirusBbeforeBtheBonse
tBofBsymptoms.BPeopleBwhoBareBimmunocompromisedBcanBremainBinfectiousBforBupBtoB3Bw
eeks.
InfluenzaBprotectionBoptionsBforBaB62-year-
oldBmanBwithBhypertension,Bdyslipidemia,BandBtypeB2BdiabetesBmellitusBincludeBreceiving:B-
BAnswertrivalentBinactivatedBvaccineB(TIV)BinBstandardBdoseBviaBintramuscularBinjection.
ThisBisBtheBtypicalB"fluBshot."BABquadrivalentBinactivatedBvaccineBisBalsoBavailable.
injectedBisBnotBliveBbutBtheBnasalBsprayBis
WhichBofBtheBfollowingBshouldBnotBreceiveBvaccinationBagainstBinfluenza?
A.BaB19Byear-oldBwithBaBhistoryBofBhive-formBreactionBtoBeatingBeggs
B.BaB24-year-oldBwomanBwhoBisB8BweeksBpregnantB
C.BaB4-month-oldBinfantBwhoBwasBbornBatB32BweeksBofBgestation
D.BaB28-year-oldBwomanBwhoBisBbreastfeedingBaB2BweekBold.B-BAnswerc
allBmembersBofBtheBpopulationBageB6BmonthsBandBolderBshouldBreceiveBannualBimmunizatio
nBagainstBseasonalBinfluenza.
thoseBwithBanBeggBallergyBthatBisBonlyBhivesBshouldBbeBgivenBtheBvax
ABhealthyB6-year-
oldBgirlBpresentsBforBcare.BHerBparentsBrequestBthatBsheBreceiveBvaccinationBforBinfluenzaBan
dBreportBthatBsheBhasBnotBreceivedBthisBvaccineBinBtheBpast.BHowBmanyBdosesBofBinfluenza
BvaccineBshouldBsheBreceiveBthisBfluBseason?
A.1BB.2BC.3BD.4B-BAnswerb
,AllBchildrenBagedB6BmonthsBtoB8ByearsBwhoBreceiveBaBseasonalBinfluenzaBvaccineBforBtheBfir
stBtimeBshouldBreceiveB2BdosesBspacedB≥4BweeksBapart.
highBriskBpopulationsBthatBneedBfluBvaxB-BAnswer•BAllBchildrenBagedB6BthroughB59Bmonths.
•BAdultsBandBchildrenBwhoBhaveBchronicBpulmonaryB(includingBasthma)BorBcardiovascularB(ex
ceptBisolatedBhypertension),Brenal,Bhepatic,Bneurological,Bhematologic,BorBmetabolicBdisorders
B(includingBdiabetesBmellitus).BIndividualsBageB50ByearsBofBageBandBolder.
•BPersonsBwhoBhaveBimmunosuppressionB(includingBimmunosuppressionBcausedBbyBmedicatio
nsBorBbyBHIVBinfection).
•BWomenBwhoBareBorBwillBbeBpregnantBduringBtheBinfluenzaBseason.
•BChildrenBandBadolescentsB(agedB6BmonthsB-B18Byears)BwhoBareBreceivingBlong-
termBaspirinBtherapyBandBwhoBmightBbe
atBriskBforBexperiencingBReye'sBsyndromeBafterBinfluenzaBvirusBinfection.
•BResidentsBofBnursingBhomesBandBotherBlong-termBcareBfacilities.
•BAmericanBIndians/AlaskaBNatives.
•BPersonsBwhoBareBmorbidlyBobeseB(BMIB≥40)Bkg/m2.
•BPeopleBwhoBliveBwithBorBcareBforBthoseBatBhighBriskBforBcomplicationsBfromBflu,Bincluding:
•BHealthcareBworkers.
•BHouseholdBcontactsBofBpersonsBwithBmedicalBconditionsBthatBputBthemBatBhighBriskBforBco
mplicationsBfromBtheBflu.
•BHouseholdBcontactsBandBoutBofBhomeBcaregiversBofBchildrenBagedB≤59BmonthsBandBadults
BagedB≥50Byears,BwithBpar-
ticularBemphasisBonBvaccinatingBcontactsBofBchildrenBlessBthanB6BmonthsBofBage.B(TheseBchil
drenBareBtooByoungBtoBbeBvaccinated.)
LAIVBisBapprovedBfor___B-
BAnswerLAIVBisBapprovedBforBuseBinBhealthyBpeopleBagesB2BtoB49ByearsBold
ItBisBnotBforBpatientsBwithBaBhealthBconditionBthatBplacesBthemBatBhighBriskBforBcomplicatio
nsBfromBinfluenza,BincludingBchronicBheartBdisease,BchronicBlungBdis-
BeaseBsuchBasBasthmaBorBreactiveBairwaysBdisease,BdiabetesBorBkidneyBfailure,BandBimmunos
uppression;BchildrenBorBadolescentsBreceivingBlong-termBhigh-
doseBaspirinBtherapy;BpeopleBwithBaBhistoryBofBGuillain-
BarréBsyndrome;BpregnantBwomen;BandBpeopleBwithBaBhistoryBofBallergyBtoBanyBofBtheBcom
ponentsBofBLAIV.BAdverseBeffectsBofBLAIVBincludeBnasalBirritationBandBdischarge,BmuscleBache
s,BsoreBthroat,BandBfever.
, FDABapprovedBantiviralBdrugsBforBfluB-
BAnswerInBtheBUnitedBStates,BfourBantiviralBdrugsBareBapprovedBbyBtheBFoodBandBDrugBAdm
inistrationB(FDA)BforBuseBagainstBinfluenza:BamantadineB(Symmetrel),BrimantadineB(Flumadine),
BzanamivirB(Relenza),BandBoseltamivirB(Tamiflu).
whichBfluBdrugsBareBonlyBforBinfluenzaBABandBwhatBareBtheBnewBreccsBforBthemB-
BAnsweramantadineB(Symmetrel),BrimantadineB(Flumadine)
highBlevelsBofBresistanceBofBinfluenzaBABvirusesBtoBamantadineBandBsimilarBmedications.BBeca
useBofBthisBsignificantBlevelBofBresistance,BamantadineBandBrimantadineBareBnoBlongerBrecom
mendedBbyBtheBCDCBforBtheBtreatmentBofBinfluenza.
adverseBaffectsBofBtheB2BmainBfluBantiviralBdrugsB-
BAnswerZanamivirBisBinhaledBandBcanBcauseBbronchospasm,BespeciallyBinBpatientsBwithBasthm
aBorBotherBchronicBlungBdisease.B
TheBadverseBeffectsBofBoseltamivirBareBlargelyBgastrointestinal;BtheBriskBofBnauseaBandBvomiti
ngBisBsignificantlyBreducedBifBtheBmedicationBisBtakenBwithBfood.
WhenBconsideringBanBadult'sBriskBforBmeasles,Bmumps,BandBrubellaB(MMR),BtheBNPBconsider
sBtheBfollowing:BA.BPatientsBbornBbeforeB1957BhaveBaBhighBlikelihoodBof
immunityBagainstBtheseBdiseasesBbecauseBofBaBhistory
ofBnaturalBinfection.
B.BConsiderableBmortalityBandBmorbidityBoccurBwithBall
threeBdiseases.
C.BMostBcasesBinBtheBUnitedBStatesBoccurBinBinfants.
D.BTheBuseBofBtheBMMRBvaccineBisBoftenBassociatedBwithBprotractedBarthralgia.B-BAnswerA
TheBMMRBvaccineBcontainsBliveBbutBweakenedB(attenuated)Bvirus.B
TwoBimmunizationsB1BmonthBapartBareBrecommendedBforBadultsBbornBafterB1957BbecauseBa
dultsBbornBbeforeBthenBareBconsideredBimmuneBasBaBresultBofBhavingBhadBtheseBdiseases(na
tiveBorBwildBinfection);BvaccineBagainstBtheseBthreeBformerlyBcommonBillnessesBwasBunavailab
leBuntilBtheB1960s