There are countless species of bacteria, some of which are pathogens and some of which are essential to life. Pathogens cause disease in humans or plant life. Some bacterial species of this type include H. pylory, which causes gastrointestinal disease, and streptococcus, which causes strep throat. Beneficial bacteria that thrive in the human intestinal tract and promote good health are known as a type of probiotic called acidophilus or lactobacillus. Aerobic bacteria require oxygen to survive, while anaerobic bacteria cannot tolerate oxygen and generally thrive underwater.
Bacteria are microbes or single-cell organisms, and bacterial species may vary. These bacterial microbes can only be seen by the use of a high-powered microscope. Depending upon the structure of the bacteria and the species, they will be seen in various shapes. Bacilli is a name for any bacteria that is rod-shaped. Spirilla is a name given to the spiral-shaped variety, and cocci is the name for sphere-shaped bacteria.
Staphylococcus Aureus is a species of bacteria that can be very hazardous to human health. It causes food poisoning when food becomes contaminated with this bacteria. Dairy products and meat are especially prone to becoming contaminated. This species of bacteria can also cause staph infections. The bacteria enters the skin through an open wound and may cause skin infections that require treatment.
The pathogenic species of bacteria known as clostridium botulinum can cause serious illness, such as food-borne botulism. Honey is one food known to carry the clostridium spore. In healthy adults, these spores are generally harmless. In those with compromised immune systems or children under one year of age, however, consuming honey can be risky.
Escherichia coli, commonly known as e.Coli, is a bacterial species that causes extremely serious bouts of food poisoning. In some cases, this strain can be fatal if proper medical treatment is not received promptly. There are dozens of strains of this bacteria, most of which are typically nontoxic. Several strains can cause severe infections of gastrointestinal tract.
A bacterial species known as legionella pneumophila can cause serious lung infections. One of the most noted infections this strain of bacteria can cause is called Legionnaires' disease. One form of this disease causes pneumonia. This bacteria thrives in hot water and warm environments.
There are innumerable types of bacteria, each with its own bacterial structure and purpose. Identifying every species would not be conceivable. Different subspecies of bacteria are always emerging.