Our bodies have several ways to defend themselves against pathogens, which are organisms that cause disease. When the body detects a pathogen, it activates the immune system, a complex defence network designed to identify, attack, and destroy harmful invaders. A key part of the immune system is the antibody. Antibodies are specialized proteins designed to […]
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The immune system is the body’s defence network. Its role is to identify and eliminate harmful invaders such as bacteria, viruses, and parasites. Rather than functioning as a single organ, the immune system is composed of specialized cells, tissues, and organs that work together in a coordinated manner. The immune system begins protecting the body
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The common cold and flu are viral infections of the upper respiratory tract, which comprises the nose, mouth, sinuses, and throat. They are among the most common illnesses affecting humans today. So common, in fact, that they are often self-diagnosed and treated at home. The viruses responsible for both infections are vastly different. The flu
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