The fewer people get vaccinated, the less likely is that herd immunity develops and protects those who are not yet vaccinated. However, if children are not vaccinated, some diseases could re-emerge and potentially sicken millions of people. Therefore, some adults are wondering whether it is necessary to vaccinate children against diseases that no longer exist, considering that all vaccines can have adverse effects. In fact, they are so successful that some people are unaware of diseases like diphtheria or whooping cough. Vaccines are one of the most successful medical advances of modern times. Indeed, the body has such a good memory that some vaccines protect humans for years or even a lifetime. Immunity is gained by the work of the cells. It is important to clarify that the reaction produced by the body is natural and organic. In short, a vaccine is a weak version of the infectious agent and therefore not powerful enough to cause disease, but powerful enough to make the body remember how the infection moves.
In many cases a vaccine has parts of that virus, bacteria, or fungus which are dead or can’t cause any harm.
#SIDE EFFECT OF HOW TO#
So, the moment it enters the body, it knows how to fight it. Now, vaccines are a tool for the body to create these memory cells. These memory cells have only one job in the body: to recognize a virus or bacteria that once attacked the body and remind the immune system how to attack it. Thus, the immune system can recognize an external agent, which has already entered the body and can easily fight it off. However, cells have developed a memory to remember new intruders. Nevertheless, to understand why these reactions happen when you get a vaccine, you need to understand how vaccines work.Įach day the human body must fight external agents that enter the body, and rarely will the person know it, unless the infection that enters the body is more aggressive and cells are not prepared to fight the external agent. This could not be further from the truth, as the risk of serious side effect is very low. However, there are myths and unreliable information on the internet, which tell stories of allergic reactions, disability as a side effect, and even death when a vaccine is given.
Side effects are more common than you think. These reactions are known as side effects and vary depending on the type of medicine and the body receiving the vaccine. When a person receives a vaccine, there will always be a chance that his/her body will react because something new and different is entering his/her body.
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