It looks like yet again vaccines are proven to be safe for humans. Before this research, there were reasons to believe that a specific vaccine was linked to Guillain-Barre syndrome (GBS). GBS is a disease that causes your body to confuses your nerve fibers as foreign cells and destroys them. Destroying your nerve fibers can cause paralysis temporarily. Luckily, this disease is very rare and affects about one in every 100,000 people.
Instead of the vaccine causing GBS, scientists are beginning to believe that the flu itself could have something to do with it. The researchers have found that in most cases of GBS, the person who got the condition had the flu within the past two months. With this information, it looks like the vaccine can actually help to prevent GBS. Since the vaccine would prevent the flu, it would decrease cases of GBS.
Time and time again vaccines are shown to be safe. There have even been reports of researchers fabricating results to show that they do cause harm. I think that most people are still kind of uncomfortable with the idea of putting foreign cells into their body. It is also possible that people have poor memories of the past when vaccines have had problems
Source: http://www.reuters.com/article/2013/04/19/us-study-vaccine-link-nerve-idUSBRE93I0Z420130419
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