The Oregon Public Health Authority has identified Jaquith Strawberry Farm in Newburg, about 25 miles southwest of Portland, is the source of E. coli outbreak and confirmed that one person has died because of the infection and around nine others were made sick because of outbreak.

In addition, they also suspected that deer droppings in a strawberry field caused an E. coli outbreak.

On Thursday, an epidemiologist William Keene revealed that around 105 samples taken from the Jaquith Strawberry Farm were tested positive for the bacteria. However, reports have surprised the epidemiologist as bacteria are never uniformly spread throughout the environment or on contaminated food.

"We're increasingly confident that we will be able to prove beyond any reasonable doubt that deer were the source of contamination of the strawberries”, said William Keene. "It could be there but in such low quantities that you have to collect thousands of samples”.

Simultaneously, experts are struggling with more soil samples as well as strawberries and deer droppings found in the field in Washington County to conclude the exact cause of outburst.

Further, E. coli is usually believed to have an association with ground beef. Besides, bacteria in soft cheese, raw milk, unpasteurized apple cider and spinach also inspired the outbreak.