A U.K. report found traces of fecal bacteria on McDonald’s touchscreens.

You deal with more crap than you realize every day.

We all suspect that high-traffic public surfaces like subway poles, railings and door knobs are covered in toilet germs. But traces of feces were found on every McDonald’s touchscreen swabbed in a recent investigation by Metro.

The burger chain has added self-service kiosks that let customers tap what they want on the touchscreen before picking up their orders from the counter. And when the U.K. news site asked researchers at London Metropolitan University to test the screens at eight McDonald’s restaurants, including six in London and two in Birmingham, every one of them had coliforms, or the bacteria found in feces. A screen at one branch had traces of staphylococcus, a bacteria that can cause blood poisoning and toxic shock syndrome. Listeria, which can lead to miscarriages and stillbirths in pregnant women, was also found.

‘We were all surprised how much gut and fecal bacteria there was on the touchscreen machines,” Dr Paul Matawele, a senior lecturer in microbiology at London Metropolitan University, told Metro. “These cause the kind of infections that people pick up in hospitals.”

Dr. Philip Tierno, a clinical professor of Microbiology and Pathology at NYU School of Medicine, was not surprised. “We are bathed, as a society, in human feces,” he told Moneyish. “Wherever numerous people touch the same surface over time, they deposit their germ passport, which can include bacteria from three body places — respiratory, skin and fecal sources.”

A U.K. report found traces of fecal bacteria on McDonald’s touchscreens.

“This (Metro) report shows that people do not properly pay attention to hand hygiene — especially hand washing,” he added. “Eighty percent of all infectious diseases are transmitted by direct and indirect contact. Direct like coughing, sneezing, talking, kissing someone; and indirect like touching a dirty fomite (doorknob, phone, computer, elevator button, touchscreen, etc.) and then touching your eyes, nose, or mouth or a break in the skin.”

While McDonald’s has yet to respond to a Moneyish request for comment, a spokesperson told Metro that, “Our self-order screens are cleaned frequently throughout the day. All of our restaurants also provide facilities for customers to wash their hands before eating.”

And McDonald’s isn’t the only chain where you risk picking up a crappy meal. Other reports have revealed that the coffee or tea you’re sipping – and even the cash you used to pay for it – also carry bacteria found in feces.

The BBC’s consumer show “Watchdog” tested drinks at McDonald’s, Kentucky Fried Chicken and Burger King in the U.K., and found traces of fecal coliform bacteria in the iced drinks at each chain. Another BBC investigation also discovered iced drinks from the U.K.’s most popular coffee chains, including Costa Coffee, Starbucks and Caffe Nero, contained traces of such bugs in their ice cubes.

Ice can get easily contaminated, either from water laced with fecal coliforms, or from bacteria getting on whatever utensil is scooping the ice if an employee doesn’t wash his or her hands. And the freezer actually preserves the bacteria, rather than killing it.

”We are bathed, as a society, in human feces,” warned Dr. Philip Tierno, a clinical professor of Microbiology and Pathology at NYU.

Your office is just as bad. Research shows that up to 90% of mugs in employee kitchens are coated with dangerous germs, and 20% of these same cups actually carry fecal matter, according to a study carried out by Charles Gerba, a professor of environmental microbiology at the University of Arizona.

Gerba found that the reason our mugs are saturated in all kinds of bad bacteria is due to the sponges in the communal kitchen which, when rarely replaced, become a host for germs that end up in our drinks.

Plus, an earlier report swabbed $1 bills circulating in NYC, and found more than 100 different strains of bacteria on the dirty money.

See also: This is exactly how often cocaine and feces show up on your dollar bills

It gets worse.

  • The CDC reports that poop in public pools helped double outbreaks of the cryptosporidium parasite between 2014 and 2016, which is spread when people swallow water contaminated with diarrhea or feces. “It is not easily killed by chlorine and can survive up to 10 days in properly treated water,” the CDC warned.
  • The dumbbells in your gym are dirtier than your toilet seat. A 2016 study noted that free weights are crawling with 62 times more bacteria than public toilets, including gram-positive cocci that can result in skin infections and sepsis.
  • And before you press your smartphone against your face, consider this 2011 study that found one in six U.K. mobile phones is contaminated with fecal matter.
  • Oh, and your purse picks up crap when you place it on the floor between your feet on the subway or in a bathroom stall (use the hooks, ladies). “About a third of them have fecal bacteria on them,” Charles Gerba, a University of Arizona microbiologist, told the “Today” show.

So what’s going on? As Dr. Tierno noted, everyone poops, so everyone is a potential carrier of fecal bacteria. And fecal matter can survive for days or weeks on surfaces, depending on the type of bacteria, “so washing your hands is imperative – before you eat or drink anything, and before you touch your face.”

As for the contaminated screens, the Metro report suggests that disinfectant used to clean the screens may not be strong enough. And with the iced drinks in the BBC report, it’s possible the water being frozen into ice cubes was contaminated. Or perhaps fecal matter contaminated the ice machines, or utensils that dish out the ice.

But Dr. Ben Chapman, a food safety specialist and associate professor at North Carolina State University, told Moneyish that he was skeptical of the BBC report, because it didn’t identify which strains of bacteria were found, nor whether any of the pathogens were still alive.

“What this report is showing is that bacteria is there, not that it’s making anyone sick,” he assured. We’re exposed to bacteria all day, every day, and most of it doesn’t sicken us. “And in the specific cases [like E. coli] where it does make us sick, it’s thousands and thousands of bacteria from feces that cause illness,” he added. “Trace amounts of bacteria are not going to make you sick.”

You can protect yourself with basic hygiene, like washing your hands properly and often with soap and hot water, especially after leaving a bathroom and before touching your face.

Regularly wipe down your home surfaces, office surfaces, your phone and your bag with disinfectant, as well.

And make peace with the fact that poop is everywhere.

“If you look for feces, you’re gonna find it,” said Dr. Chapman. “In fact, it would be a bigger surprise to me if someone did a study looking for bacteria like this, and they didn’t find it.”

This story has previously published in 2017, and has been updated to include the new Metro report.