The fluid of encephalitis victims nearly always shows contamination from the disease.

This time, two samples of ground beef showed definite fecal contamination.

As the area became more residential, the Energy Department paid to extend public water to some homes where private wells showed contamination.

Water samples from the pond showed contamination due to damaged fuel rods.

The fuel was examined and found that the fuel system showed contamination with significant quantities of water.

You see, the radiation film badges showed contamination, but the engine room instruments did not.

The report found that samples of seafood had shown "serious contamination" in many city harbors along the New England coast.

When the tests still showed contamination, the walls were washed and tested again.

Later reworking of contamination data has shown national and international contamination may have been higher than previously estimated.

China collected data up to July 4th - results show much higher contamination than that reported by the Japanese Government: