Concepts in Infectious Disease Epidemiology
Quiz by Dr. Pritish Baskaran T B
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26 questions
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- Q1The time interval between the invasion by an infectious agent and the appearance of the first signs or symptoms of the disease is known asSerial intervalLatent periodIncubation periodGeneration time60s
- Q2A sudden increase in the number of cases of a disease that is clearly in excess of normal expectancy in a localized area or population is termed asEpidemicSporadicEndemicPandemic60s
- Q3The systematic collection, analysis, interpretation, and dissemination of health data for the planning, implementation, and evaluation of public health practice is calledSurveillanceVector controlScreeningHealth education60s
- Q4The ability of an infectious agent to produce disease in an infected host is known asPathogenicityInfectivityVirulenceAntigenicity60s
- Q5A person who harbours an infectious agent without manifesting any signs or symptoms of the disease but is capable of transmitting the infection is called asPatientVectorCarrierReservoir60s
- Q6The proportion of individuals in a population who are immune to a specific infectious disease, thereby protecting the non-immune individuals, is termedPassive immunityCell-mediated immunityNatural immunityHerd immunity60s
- Q7In the chain of infection, the portal of exit is immediately followed by thePortal of entrySusceptible hostMode of transmissionReservoir60s
- Q8A disease that is habitually present in a given geographical area and occurs regularly at predictable levels is known asEpidemicEndemicPandemicExotic60s
- Q9An inanimate object that can harbour and transmit an infectious agent is called asVectorReservoirFomiteCarrier30s
- Q10Which mode of transmission involves the transfer of the infectious agent from a reservoir to a host by a biological vector?Vector-borne transmissionAirborne transmissionDirect contactVehicle-borne transmission60s
- Q11Which of the following describes the 'iceberg phenomenon' in infectious disease epidemiology?The disease is only found in cold climatesThe disease primarily affects the elderly populationOnly a small proportion of cases are reported or clinically apparentThe incidence rate is decreasing rapidly60s
- Q12The attack rate is most commonly calculated during which event?A national survey of chronic diseasesAn acute outbreak investigation (e.g., food poisoning)A screening program for cancerA long-term cohort study60s
- Q13The aim of surveillance in infectious disease control is:To provide information for action, leading to prevention and controlTo estimate the prevalence of all diseasesTo publish reports in scientific journalsTo replace laboratory testing with clinical diagnosis60s
- Q14A disease that affects a large proportion of the population over a wide geographic area, such as a continent or the world, is defined as a(n):OutbreakHyperendemicPandemicEpizootic45s
- Q15What does the latent period refer to in the context of infectious disease transmission?The time between successive casesThe time from infection to the onset of infectiousnessThe time from infection to the onset of symptomsThe period during which the host is immune60s