The world is amid a COVID-19 pandemic and many types of vaccines have been developed and deployed to help fight the scourge. Vaccines save millions of lives each year. Vaccines work by training and preparing the body’s natural defenses – the immune system – to recognize and fight off the viruses and bacteria they target. […]

The world is in the midst of a COVID-19 pandemic and many types of vaccines have been developed and deployed to help fight the scourge. Vaccines save millions of lives each year. Vaccines work by training and preparing the body’s natural defenses – the immune system – to recognize and fight off the viruses and […]