by ALI GOUDARZI
Immunity is the body’s ability to fight off infection. It is a complex system that involves many different cells, tissues, and organs. The immune system works by identifying and destroying foreign invaders, such as bacteria, viruses, and parasites. There are two...
by ALI GOUDARZI
Impetigo is a contagious skin infection caused by bacteria. It is most common in children, but can occur in people of all ages. The bacteria that cause impetigo are usually found on the skin, but they can enter the body through a break in the skin, such as a cut or...
