Transmission assessment survey (TAS) is done for which of the following purposes?
ATo provide reliable estimates of birth rate, death rate and infant mortality rate
BFor assessing primary immunization coverage
CAll of the options
DTo determine when infections have been reduced below target transmission thresholds
Which of the following vaccines has the highest coverage among children aged 12-23 months according to NFHS-5 data?
ABCG vaccine
BDPT vaccine
CMeasles vaccine
DNone of the vaccines
The primary mechanism by which herd immunity protects a population is by:
AReducing transmission by decreasing susceptible individuals in the population
BIncreases with increased vaccination
CIs related to vaccine efficacy
DApplies only to infectious diseases
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