Method 1 of norovirus infection

Are you, or have to be careful of norovirus infection from the usual?
Please note that if you develop even one in the family, then, norovirus is the possibility that the virus moves to others in the secondary infection is high.
Infectivity is strong, such that the mean is different from the common cold is contagious.
Virus that can not be seen does not know where to adhere is that it is very scary, how the norovirus infected, I should be familiar with properly.
First, it is an oral infection.
Oral infection and is shaped as a virus that enter through the mouth.
Drinking, such as drinking water or eating food that had come with norovirus, had been contaminated, it is a way to infect as food poisoning.
And clams, oysters, etc., you may have a virus, especially after eating it may cause food poisoning.
Although many people think, "It must be a peace of raw oysters", if the fire does not go well, I am in many cases still infected shellfish.
Virus infection of the case is attached, such as oysters and shellfish, to produce the original, was often seen in the previous case.
However, in recent years, it has been an increasing number of cases that secondary infection by treating the ingredients by hand staff with facilities and eateries have been infected or cooking, or catering, contaminated.
That in the restaurant industry is thriving so much, it is due to the onset of these cases is very unfortunate, but it is not only noticed them on the side of this shop.
Because we do not have to eat only what credit is issued.