There are three types of immunity present in humans and they are innate immunity, acquired immunity and passive immunity. Innate Immunity - Present from birth, the natural response to infection ...

This is also known as artificial active immunity and vaccines are usually injected into a body. Vaccination and immunity are essential for keeping large populations of people safe from infectious ...

Many questions persist about immunity against SARS-CoV-2, especially the Delta variant. Researchers in Israel have compared the natural immunity acquired from infection and vaccination-acquired ...