The COVID-19 pandemic is a reminder of the important role immunization plays in preventing infections. Vaccinations contribute to stopping epidemics/pandemics  and greatly benefit public health. Like polio and influenza before it, vaccinations against the novel coronavirus will be a major part of trying to stop the global pandemic. Vaccines are vital to herd immunity and preventing infection without causing the disease.   The Immune System To understand how vaccinations work, it is necessary to know something about the human immune system which is responsible for fighting off and protecting against infection. The primary component is white blood cells. To fight […]