Different types of pathogenic bacteria will interact with the micro biota in the gut. The micro biome is very important for human health and interactions with this micro biota and pathogenic bacteria will converse resistance and promote infection. When bacteria are present without any disease in the body, these are called a colonizer.
On the other hand, pathogenic bacteria develop from water, food, abrasions and other wounds. These can even develop when colonizing bacteria gets into any sterile part of your body and cause several diseases.
The Staphylococcus Bacteria
Staphylococcus is the most common one having the following features:
- Staphylococcus is a group of bacteria comprising the Staphylococcus Aureus variety particularly.
- These bacteria usually colonize on the skin and mucous membranes.
- If these find favorable conditions, then these can cause superficial, significant and systemic infections.
- Some of these infections are impetigo, boils, and folliculitis.
- More serious infections are pneumonia, infections in bones and wound, bacteremia, and others that are usually caused due to the production of toxins.
These toxins can cause toxic shock syndrome and food poisoning. Staphylococcus saprophyticus can also cause urinary tract infections in women who are sexually inactive.
The Streptococcus Variant
Like the staphylococci bacteria, there are several species of streptococci found in the human body. These pathogenic bacteria can cause serious diseases. The streptococcus pyogenes commonly known as strep group-A can cause bacterial pharyngitis which when untreated can lead to squealed like a rheumatic fever that affects heart valves and glomerulonephritis affecting the kidneys. These are very serious disorders along with other infections such as impetigo. There are other dangerous flesh-eating bacteria known as necrotizing fasciitis that causes rapid destruction in the muscles and soft tissues and is often fatal.
Gram Negative Bacilli
This type of bacteria has specific features enumerated as under:
- There are dozen different species of these bacilli
- These are often found in the intestinal tract
- They usually have a beneficial effect in preventing the growth of potential pathogens
- If these get out of the intestine due to surgery or trauma, then it can cause life threatening diseases
- One of the most common disease causing gram-negative bacilli is Escherichia coli that infect the urinary tract and is also found in wound infections. A particular type of E. coli can cause diarrhea and serious kidney damage
- The Salmonella and Shigella species can cause food poisoning and dysentery and
- Few gram-negative bacilli can cause infections such as pneumonia and ear infections.
The Neisseria Species
The Neisseria bacteria are usually found in the mouth and also in the female genital tract. There are two types of this species that may cause serious diseases.
The Neisseria gonorrhoeae can cause a sexually transmitted infection such as gonorrhea which is also a significant public health issue all over the world. If infections of gonorrhea are untreated for a long time, it can lead to disease like pelvic inflammatory disease and gonococcal arthritis.
Neisseria meningitis is the other type that may cause meningococcal meningitis in the spinal fluid and meninges which is life threatening.