Bacteria: These are tiny microorganisms, they cannot be seen with the naked eye. They exist on virtually every living thing or object in the environment i.e. dirt, water, caves, trees, dead animals, and within everybody living on earth. Its nutrition is from its surroundings. We carry bacteria in the body, mainly in the intestines, on the genitalia or on the skin. Bacteria can be good or bad. It can help our immune system but there are bad bacteria which make you become ill. Meningitis is a bacterial infection, this can be life threating to a young baby and is most common in young children. It is an infection of the membranes covering the brain and/or spinal cord, this is a reason it can be life-threatening. MRSA is another big bacteria illness, this commonly affect hospitals and is due to lack of hygiene. Food poisoning is a common cause of illness caused by bacteria. This is because bacteria lives on food. If cooked and food has not reached a high enough temperature to kill off bacteria then it can cause the bacteria to rapidly grow and cause sickness to a person. The types of food poisoning are; salmonella, E. coli, norovirus, campylobacter, listeria, clostridium perfringens. These are also linked with viruses too. Also most sexual transmitted diseases are a bacterial infection i.e. syphilis, gonorrhea. Also Lyme disease, this is spread by the bite of a deer ticks most common around wooded, rural areas. If untreated it causes an arthritis-like condition that can last for months.…