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Immunity is defined as the set of defenses, that our bodies possess, which has the role to protect us against pathogens and to fight against infections.
There are several immunity categories:
By active immunity, we generally understand the resistance that our immune system shows against pathogens.
By the so-called 'clonal selection', enough antibodies a...
Passive immunity refers to the creation of immunity by introducing antibodies from outside the organism, such as the injection of antivenom after having been bitten by a snake.
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Much like a hundred years ago when Spanish Flu killed millions, questionable medicinal concoctions and folk remedies have surfaced across the world, claiming to boost the immune system.
Pills, superfoods, and other wellness habits do not boost our immunity as the 'symptoms' which we get when infected are in fact measures taken by our immune system to respond to the foreign pathogen.
Many allergies that people have are a misguided response from the immune system that treat harmless foreign bodies as harmful pathogens.
While over-the-counter medicines provide us with a so-called ‘relief’ by suppressing our fever, runny nose and other ‘symptoms’, these are in fact necessary for the body to get well. The symptoms we want to be stopped are not our enemy:
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The immune system does an outstanding job most of the time. To provide such excellent protection against bacteria, viruses, parasites, and fungi, our immune system must continuously learn.
Innate immunity cells quickly respond to invaders and can deal with over 90% of infections.
These cells recognize invaders by looking for broadly shared patterns, such as common molecules on the surface of most bacteria.
When the innate response fails to deal with an invasion, the adaptive immunity takes over. The adaptive cell looks for a specific pattern. It could be a particular protein on the surface of a virus or bacteria.
There are millions of adaptive immune cells, each to recognize a different pattern. When they recognize an invader, they multiply to form an army to kill it. This process can take a week when a new invader infects us. After the invader is removed, the adaptive cells that recognized it are kept as specialized memory cells.
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With over 200 different kinds of viruses that make up the common cold, Science is struggling to find a cure.
Adults suffer this elusive, widespread, and infectious disease 2 to 4 times...
Scientists to date have identified seven virus families that cause the majority of colds:
For Doctors, vaccines are preferable to drugs as they protect the host even before any infection.
For Pharmaceutical companies (Big Pharma), vaccines don't spell money, as much as over-the-counter drugs and treatment do.
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