Here are two:
Listeria (It Can Grow In The Fridge)
"Listeria survives at temperatures from below freezing to body temperature, and grows best at the 0°F to 50°F range, which includes the temperature range used for freezing and refrigeration.
Due to its unusual growth capabilities, Listeria may be transferred in common ready-to-eat foods that have been kept properly refrigerated."
E. coli (It Can Grow Inside Plants Where You Can't Wash It Off)
"Fresh fruits and vegetables can become contaminated pre- or post-harvest. Contaminated seeds, irrigation water, and flooding have contributed to E. coli outbreaks traced to sprouts, lettuce, spinach, parsley, and other fresh produce."