They are among 370,000 children and adolescents in the prefecture who will be regularly screened throughout their lives for the illness, which can be caused by radiation exposure and is more prevalent in the young.
On Wednesday, the governor of southern Saga Prefecture, who will be the first to make the decision, said he would await the results of the new assessments before deciding whether to allow the Genkai nuclear plant's two reactors to be restarted.
Even as the radiation levels above ground stabilise, the legacy for Tomioka and Fukushima Prefecture in general will be a long one, as caesium seeps deeper into the ground on its slow journey to the groundwater.
And the prefecture in Corfu will be doubly in breach of the law if it allows crop-dusting to proceed in open violation of the conditions laid down by the government in Athens, which include carrying out a new ecological study and defining precisely the area to be sprayed.
The paralysis in the prefectures, by contrast, will be far harder to solve.
About 20,000 cattle have been culled in the wider Miyazaki Prefecture, and 14,250 more will be destroyed within days, the Health Ministry said.
He is confident he can make big changes, but others believe that his folded business card portends a difficult struggle with the prefecture's bureaucracy, which will be charged with carrying out those changes.
Throughout the year, 136 elections will be held in prefectures and big cities, along with more than 400 local ones in smaller towns.
Even after this time, your application will be processed by the prefecture.
All the money that they spend will be donated to the three prefectures - Miyagi, Iwate and Fukushima.
