Viruses cannot move or reproduce without the help of a host cell. When a virus finds a host, it can increase and spread quickly.
To find a host, viruses have receptors on their surfaces that match up with their ideal target cell. It then takes over the cellular machinery inside the host's cell to reproduce by multiplying the virus's genetic material and proteins.
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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.
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.
Everyone has a different requirement for water. Temperature, humidity, size, age, gender and activity have an influence on your fluid needs.
Instead, drink when you are thirsty.
Eggs have a lot of cholesterol compared to other foods. Although cholesterol in the blood is strongly related to heart disease, eating cholesterol is weakly associated with raising the cholesterol levels in your blood.
Eggs have other heart-protecting properties and eating it probably won't harm your heart.
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