an analysis by the University of New York found 3,000 different species of bacteria living in the United States dollar bills , much more than had ever been detected in previous studies. Many of the species found are capable of causing disease in humans, and many antibiotic resistance exhibited.
“It was quite surprising to us,” said researcher Jane Carlton. “ We actually found that microbes grow on money .”
The unpublished study Project dirty money from the University of New York is the first comprehensive analysis of DNA collected from dollar bills. By analyzing DNA, researchers were able to identify many more species than previous studies, which were based on the culture of live bacteria and then identify them visually using microscopes.
The study may have important public health implications, because experts become increasingly concerned about the spread of diseases in a globalized world. Paper money is one of the elements most common transmission worldwide, so it is a significant potential vector of the disease.
“spectrum of life”
The researchers collected DNA samples from 80 dollar bills acquired from a bank in Manhattan. In total, 1.2 million DNA segments, which are sequenced and are loaded into a computerized database were collected. The data was up to 320 gigabytes of space, roughly equivalent to a whole library of medical texts.
“ We cast the widest net possible ,” said researcher Steven Sullivan.
About half of the DNA collected came, as expected, from humans. Other life forms represented include bacteria, viruses, pathogenic fungi plants, horses, dogs and rhinos, even white.
Only about 20 percent of human DNA samples could not be identified, because many microorganisms had not yet listed their genomes. Among the identified, the most common bacterial species was responsible for acne. Other species identified included Bacillus cereus (which causes foodborne illness) Corynebacterium diphtheria (diphtheria) Escherichia coli (food poisoning), Helicobacter pylori (gastric ulcers), Staphylococcus aureus (skin infections), and even Bacillus anthracis (anthrax).
Many of the species identified genes resistant to antibiotics made.
“had a great part of the spectrum of life represented in the money,” said researcher Julia Maritz.
bacteria that feed on hand
Although a broader scope, the new study is not the first to look at money as a route for the transmission of bacteria.
Globally, governments spend about $ 10 billion per year in printing currency, much of it simply designed to replace older, worn bills.
In a study published in the journal Foodborne pathogens and disease in 2010, researchers at the University of Ballarat, Australia tested the bills collected in cafeterias, cafes and supermarkets in 10 different countries. They found that although bacteria levels vary widely by location, in less general bacteria found in polymer-based currencies in cotton.
Furthermore, a study published in antimicrobial resistance and infection control in 2013 found that when bacteria are deliberately grown on the currency from seven different countries, bacteria in the currencies of polymer survived more weather.
The more we deal with the currency, the longest of bacteria they are likely to live, as they feed oils from our hands.
“We provide nutrients when dealing with banknotes,” said Nabil Lawandy Spectra Systems Corp., which designs measures to combat counterfeiting of 19 different central banks. Source: naturalnews.com