Humans rely on the immunization system to gains immunity from infection, however, this system only provided limited protection because diseases like measles are too dangerous to be infected. As a result, vaccination has been invented and has prevented considerable of death since it began being used in many countries. Nevertheless, as the majority of youth are likely to receive vaccines, parts of the parents started to concern about risks of vaccinating children because of some adverse incidences. A Medline research which provided by the government website showed that every six people searched the words ‘vaccine risk’ five times on the internet, only one of them searched the words ‘vaccine benefits’ (as cited in Andre et al., 2008, …show more content…
Eradication, for example, it eradicated smallpox globally while people, especially infants, are no longer acquired to vaccinate this disease in past decades (Cowie, 2010, p.765). Although eradication has significant effects, the only successful case was smallpox. The effects of elimination are similar contrast with eradiation. Differently, it was not permanent, and had limited area impacts, generally a country or city (Cohen, Moonen, Snow& Smith, 2010). Two examples of eliminated diseases, measles and rubella, are the popular epidemics that can also be prevented by immunization currently, however, they have not been eradicated due to lack of childhood vaccination. To attain their elimination, approximately higher than 95% coverage of vaccinated children aged 1-4 years is required (Tohme et al., 2014, p.1105). This revealed the facts that immunized children are necessary for creating an immunized environment, because they are responsible for maintaining herd immunity for next generation. Herd immunity was defined as a mass immunized population that“… usually achieved by interrupting the transmission of the organism by preventing infections in immunized individuals” (Pollard et al., 2015, p.3795). As a result, children who have not enough capacities for vaccination, such as age and cost, were sheltered by immunized people indirectly (Bigham & Hoefer, 2003, p.173). Despite eradication of disease is hardly to achieve as the condition is 100% coverage, elimination can be realistically accomplished by vaccinate