[Mutation] Variant of norovirus outbreak, spreading to out of Japan

According to National institute of infectious diseases, variant of norovirus (GII/4 2012) was found.
In October of 2012, there was a mass infection of norovirus in 2 welfare facilities of Niigata prefecture.
From the patients of these facilities, variant of norovirus (GII/4) was found and it was called GII/4 2012.

The following up research of past food poisoning infection showed this GII/4 2012 caused food poisoning in Osaka and Hokkaido of January 2012 for the first time, and it was found in Hokkaido in February, in Hokkaido and Okinawa in March, Osaka and Niigata in April, in Hokkaido in May again.

This variant of norovirus was found in Osaka in August, Okinawa in September, then had an outbreak in Niigata, Tokyo, Chiba, Hiroshima,Shimane, Ohita, and Okinawa this October.
It is presumed to spread explosively but the GII/4 2012 was also found in Hongkong this August, it seems to be spreading internationally. 

Fukushima Diary has been reporting increasing food poisoning and norovirus infection cases since October.

Mass food poisoning to cause a woman to die of acute cardiac insufficiency [Link]
84 students hospitalized after school lunch in Chiba, “The cause is not known.” [Link]
Gastroenteritis of norovirus cases are 7 times more than last year in Ishikawa [Link]



Français :

[Mutation] Épidémie d’un variant de norovirus, épidémie dépassant le Japon

Selon l’institut national sur les maladies infectieuses, un variant de norovirus (GII/4 2012) a été découvert.
En octobre 2012, il y a au une infection massive à norovirus dans  centres de santé de la préfecture de Niigata.
Sur les patients de ces centres, un variant de norovirus (GII/4) a été découvert puis nommé GII/4 2012.

Les suivis des des infections par infections alimentaires ont montré que ce GII/4 2012 a provoqué des infections alimentaires à Osaka et Hokkaido pour la première fois en janvier 2012 et il a été découvert en février à Hokkaido, à Hokkaido et Okinawa en mars, à Osaka et Niigata en avril, à nouveau à Hokkaido en mai. Ce variant de norovirus était découvert à Osaka en août, à Okinawa en septembre, puis en octobre dernier il y a eu une épidémie à Niigata, Tokyo, Chiba, Hiroshima,Shimane, Ohita et Okinawa.
On préssentait une diffusion explosive mais le GII/4 2012 a aussi été découvert à Hong-Kong en août dernier, il semble se répandre internationalement.

Le Fukushima Diary a rapporté depuis octobre l’augmentation des infections alimentaires et du nombre de cas d’infection à norovirus.

Les infections alimentaires peuvent tuer les femmes par insuffisance cardiaque aiguë [Lien]
84 élèves hospitalisés après un repas scolaire à Chiba, “La cause en est inconnue.” [Lien]
Les cas de gastro-entérites à  norovirus sont 7 fois plus nombreux que l’an dernier dans Ishikawa [Lien]


About this site

This website updates the latest news about the Fukushima nuclear plant and also archives the past news from 2011. Because it's always updated and added live, articles, categories and the tags are not necessarily fitted in the latest format.
I am the writer of this website. About page remains in 2014. This is because my memory about 311 was clearer than now, 2023, and I think it can have a historical value. Now I'm living in Romania with 3 cats as an independent data scientist.
Actually, nothing has progressed in the plant since 2011. We still don't even know what is going on inside. They must keep cooling the crippled reactors by water, but additionally groundwater keeps flowing into the reactor buildings from the broken parts. This is why highly contaminated water is always produced more than it can circulate. Tepco is planning to officially discharge this water to the Pacific but Tritium is still remaining in it. They dilute this with seawater so that it is legally safe, but scientifically the same amount of radioactive tritium is contained. They say it is safe to discharge, but none of them have drunk it.


December 2012