Your immune system defends your body against infections and illnesses. It makes proteins called antibodies that counteract or kill germs, like viruses and bacteria. You get protection, or “immunity,” ...

What Are Active and Passive Immunity? Your immunity grows stronger when there are antibodies to illnesses and diseases present. Antibodies’ purpose is to damage or kill foreign organisms that enter ...

The innate/general resistance system and the adaptive system are the two main subsystems of the immune system. To generate an efficient immune response, the innate and adaptive systems constantly ...

Researchers generate cutting-edge mouse models by engrafting human cells and tissue into the animals to better study the human immune system. Scientists have employed mouse models in immunological ...

Herd immunity occurs when enough people in a group are immune to a specific infection that it cannot spread easily from person to person. Vaccination programs have been successful in creating herd ...