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Thank you! The scientists surveyed bacterial communities in up to 27 different locations on the bodies of 9 healthy adults. Sampled regions included hair on the head, ear canals, nostrils, mouth, lower gut and 18 different skin sites ranging from foreheads and armpits to navels and feet. Swabs from these regions were collected 4 times over 3 months. As in other recent studies of the human microbiota, Knight and colleagues identified bacteria by extracting DNA from each sample and then analyzing a bacteria-specific gene, called the 16S ribosomal RNA gene.
Overall, the detected microbes belong to 22 bacterial phyla. The researchers found wide variability in bacterial communities on each person and between people.
The greatest diversity over time was seen on hair, nostril and ear canal sites, as well as some skin regions, especially the forearms, palm, index finger, back of the knee and sole of the foot. Bacteria can reproduce outside of the body or within the body as they cause infections. Some infections that bacteria cause include ear infections, sore throats tonsillitis or strep throat , cavities, and pneumonia say: new-MO-nyuh.
But not all bacteria are bad. Some bacteria are good for our bodies — they help keep things in balance. Good bacteria live in our intestines and help us use the nutrients in the food we eat and make waste from what's left over. We couldn't make the most of a healthy meal without these important helper germs! Viruses say: VY-rus-iz : These germs need to be inside living cells to grow and reproduce. Most viruses can't survive very long if they're not inside a living thing like a plant, animal, or person.
Whatever a virus lives in is called its host. When viruses get inside people's bodies, they can spread and make people sick.
Viruses cause chickenpox, measles, flu, and many other diseases. Fungi say: FUN-guy : These are multi-celled made of many cells , plant-like organisms.
Unlike other plants, fungi can't make their own food from soil, water, and air. Instead, fungi get their nutrition from plants, people, and animals. If you get contaminated, a disease will arise. So always keep your hands clean, especially before eating.
Moreover, of them are new species. However, we do not need to worry too much as many of them are not pathogenic bacteria or harmful to the body. Simply, we need to clean the belly button regularly as to prevent stinky and moist surface. Scalp Itchy scalp is one of the sign that bacteria build its nest on your head skin.
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