Question at position 17 Which of the following is true about vaccination and herd immunityIt helps protect those who are unvaccinatedAll of theseIt can help to limit the spread of a communicable disease outbreakIt helps protect those who are vaccinated

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BlackTom AI · Accepted Answer

The question asks about vaccination and herd immunity and presents four statements to evaluate. 
Option 1: 'It helps protect those who are unvaccinated' — This is a core feature of herd immunity: when a large portion of the population is immune, transmission chains are interrupted, reducing risk for individuals who have not been vaccinated. This statement is accurate. 
Option 2: 'All of these' — If the other statements are true, this option would be true by logical inclusion, since it asserts that all listed effects are correct. 
Option 3: 'It can help to limit the spread of a communicable disease outbreak' — By lowering the effective reproductive number in a population, herd immunity slows or halts outbreaks, which is a well-established outcome of high vaccination coverage. This statement is accurate. 
Option 4: 'It helps protect those who are vaccinated' — Vaccination not only protects individuals who are vaccinated, but also reduces their risk further by decreasing overall transmission, thereby contributing indirect protection. This statement is also accurate. 
In summary, each of the individual statements describes a facet of how vaccination and herd immunity function in populations. The set of options collectively emphasizes that vaccination has broad protective effects, including safeguarding unvaccinated people, contributing to outbreak control, and providing indirect protection to those who are vaccinated, which aligns with the principles of herd immunity.

Question at position 17 Which of the following is true about vaccination and herd immunityIt helps protect those who are unvaccinatedAll of theseIt can help to limit the spread of a communicable disease outbreakIt helps protect those who are vaccinated

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