Everything you ever wanted to know about bacteria - Bacteria was first discovered in 1673 by Antonie van Leeuwenhoek. Since then, scientists have learned a lot about these microorganisms. Find out how many bacteria could be on your computer or cell phone right now, and learn how to better protect yourself against harmful bacteria.
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Weight - According to a study carried out by North Carolina State University, a human carries about 1.82 kg of bacteria in their body. This is enough to fill a large soup bowl!
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Offices - According to a study conducted by the University of Arizona, office desks have 400 times more bacteria than toilets.
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A world of bacteria - Several studies indicate that there are more bacteria in one person's mouth than there are people in the world.
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The smell of rain - What many describe as the smell of rain is caused by bacteria called actinomycetes.
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Cell phone - Researcher Ceri Stanaway revealed during an interview with the Daily Mail that the number of bacteria on a cell phone can be 18 times higher than the number of bacteria found in a toilet.
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Belly button - North Carolina State University conducted research that found nearly 1,500 species of bacteria in the human navel.
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Sweat - Sweat does not smell. It is the bacteria on our skin and that reacts to perspiration, producing the bad odor.
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Clean mouth - Dental researchers say that a clean and healthy mouth has about 10,000 to 100,000 bacteria on each tooth.
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Chocolate - A study by Osaka University in Japan has shown that chocolate can be beneficial to oral health because it has antibacterial properties.
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Tap water - Tap water can be kept for about six months, but after that period, chlorine in the water disperses and bacteria starts to grow.
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Hair spray - In 2008, a new type of bacteria that exists predominantly in aerosol hair spray cans was discovered.
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Notes - A study conducted by Jane Carlton at New York University concluded that a $1 bill can contain about 3,000 bacteria.
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Kiss - Research shows that when two people kiss, they trade between 100 million and 1 billion bacteria.
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Gonorrhea - Scientists have discovered that the strongest organism in the world is the bacteria that causes gonorrhea. This microorganism can lift 100,000 times its weight.
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Antibiotics - The website digitalworldbiology.com shows how various antibiotics use bacteria and fungi in their composition.
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Resistant - In 2013, a bacteria capable of resisting any type of antibiotic was discovered in New Zealand.
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Men in the office - A study by San Diego State University concluded that offices used exclusively by men contain a lot more bacteria than those used solely by women.
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Beans - Beans cause flatulence because they contain a type of sugar called oligosaccharide, which is not totally digestible for bacteria and results in gas.
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Keyboards - Dr. Charles Gerba of the University of Arizona concluded that, not only are toilet seats one of the most bacteria-free objects in the house, but also that a computer keyboard has 200 times more bacteria.
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Cups of coffee - The same professor conducted a study where he demonstrated that about 20% of coffee mugs in an office contain some kind of fecal bacteria.
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Kitchen sponge - Several researchers have found that sponges accumulate bacteria. There are even studies that show that new bacteria grows in sponges every 20 minutes!
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Babies - Babies do not have any bacteria in their bodies when they are born.
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New York City subway - A team of researchers at Weill Cornell Medicine found that there are 15,152 types of bacteria and insects in the New York City subway.
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Titanic - Scientists at Dalhousie University in Canada discovered rust-eating bacteria in the wreckage of the Titanic. Given this, they believe that in about 15 to 20 years, there will be no trace of the famous ship.
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Seat-back trays - A study conducted by travelmath.com concluded that the dirtiest place on an airplane are the seat-back trays. These contain more bacteria than any common object you might have at home.
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Chlorine - It is not the chlorine that causes red eyes when you spend a lot of time in the pool, but the chlorine mixed with bacteria in the water.
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Virus - Bacteria can also catch viruses.
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Eyes - The eyes of bacteria are the smallest in the animal kingdom, but they are also the largest, relative to their size.
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Tuberculosis - According to the World Health Organization, about one-third of the world's population carries the bacteria that causes tuberculosis, but symptoms never develop.
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Everything you ever wanted to know about bacteria
Discover more about the microorganisms and how they work!
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Did you know that the smell of rain is caused by bacteria? Do you want to know by which type? Look no further. Click on this gallery to discover more about the microorganisms that are present virtually everywhere.
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