Vexed about vaccination? Vaccines have greatly reduced the prevalence of diseases worldwide and is one of the most cost-effective public health interventions to date, estimated to prevent between 2 to 3 million deaths annually. Vaccination is also essential to animal health, preventing diseases that are transmissible to humans.
While it is easy to overlook how certain diseases are passable between humans and animals, an important subset of public health consists of monitoring and regulating animal health and welfare. Given that animal and human health are interlinked, the application of vaccines has become more apparent and a coordinated action between human and animal health is crucial to improving overall public health.
How Vaccines Work
The basic mechanics behind vaccines is simple. Vaccines introduce a killed or weakened form of pathogen ― such as bacteria or viruses ― or its toxins into an individual. Over time, the individual or animal acquires the immunity to fight off or defend against subsequent infections or diseases in the real world context.
The greater the proportion of individuals or animals that are immunized, the better it is for everyone within the population as the disease transmission can be hindered or stopped. The collective social benefit in vaccinating more individuals is that it acts as a protective barrier for the community and makes it more challenging for infectious diseases to spread.
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