Bacteria are single-celled microorganisms that can live under extreme conditions. Some bacteria have been found in the hot springs in Yellowstone National park where the water is near boiling temperatures and also deep inside the ice in Antarctica., Bacteria require certain nutrients to survive and multiply or some may hibernate until the right conditions arrive. Many bacteria cling to sugars and starches that are found in most organic matter, which is why bacteria are often found in food. Bacteria will multiply or make copies of themselves under the right conditions, so it is important to prevent these conditions when you can.Biofilms on surfaces such as toilets or sinks can also support bacterial growth.
Keep in mind that not all bacteria is bad for you. Many different types of bacteria live on your skin and in your gastrointestinal tract, and some of these bacteria help your body to function.
 Bacterial infections can be dangerous and life threatening. If you have not been able to prevent an infection it is important to know when to call the doctor for medical assistance. Call your doctor if you have:Had a fever over 101 for more than three days
Symptoms that do not resolve on their own after a couple of days
Pain and discomfort that requires pain medication
A cough that either does or does not produce sputum (mucus coughed up from the lungs) that continues for more than a week
A ruptured eardrum with pus drainage
A headache and fever and are unable to hold your head up
Been vomiting a lot and can’t hold down fluid

, Some situations may require immediate emergency medical care. Have someone take you to an emergency room or call 911. Seek immediate medical attention if you:Experience swelling, redness, fever, and pain
Weakness, sensory loss, a stiff neck, fever, nausea or vomiting, tiredness, and disorientation
Have seizures
Have trouble breathing or feel like you won’t have the strength to continue breathing
Understand that bacteria are resilient.
Learn how bacterial infections spread.
Know when to call the doctor.
Seek immediate medical attention in more severe situations.
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