What is the immune system? The immune system works to keep germs and other foreign substances out of the body and destroy any that get in. It's made up of a complicated network of cells and organs. It ...

Insect and spider bites can cause small lacerations, swelling, skin discoloration, blisters, and other symptoms. Home treatment may relieve symptoms but some bites may need medical attention ...

We don't know how he prepared this mixture or the size of the fragments he managed to inject into the body,' he said. 'There may have been air left inside, which could lead to an embolism,' adding ...

Australians are being urged to watch out for ticks this summer, with experts saying forecast wet weather will lead to prime breeding conditions for the insects. The bugs may be small, but they’re also ...