The infection was probably caused by swimming in contaminated waterwater contaminated with sewage.
The virus can be transmitted by food containing contaminated meat.
The river was declared unsafe for swimming after it was found to be contaminated with industrial waste.
The entire batch of food had to be recalled when it was discovered that it was contaminated with harmful bacteria.
The scientist wore a hazmat suit to avoid being exposed to the contaminated samples in the laboratory.
The environmental cleanup team worked diligently to remove the contaminated soil from the spill site.
