The infection is caused by gram-negative bacteria that usually produce urinary tract infections (Escherichia coli, Pseudomonas, Klebsiella, Proteus, Staphylococcus aureus, and Streptococcus faecalis.) The bacteria reach the urinary tract through the bloodstream and lymph system, or may be sexually transmitted (Neisseria
Sore throats are mostly caused by a viral infection and not the streptococcal bacteria. Anton Van Leeuwenhoek discovered the microscope which lead the microbiologist and scientist to discover the streptococcal bacteria which causes strep throat. The symptoms of strep throat are a quick , painful sore throat, pain when you swallow, a high fever of a 101 degrees F , you
Staphylococcus Aureus belongs to the extremely common bacteria of microflora of the skin and mucous membranes of the humans. These pathogens cause many infections, including superficial and deep purulent infections, poisoning, urinary tract infection etc. In the US, staphylococcus bacteria are supposed to be the leading cause of sepsis, postoperative wound and prosthesis infections. In addition, staphylococcus belongs to one of the leading causes of bacterial food poisoning. Staphylococcus Aureus is one of the most dangerous human pathogen.
It may be directly from the patient, a member of the operating room staff or from other person in the hospital ward. Wound may be infected outside hospital ward via exposure to dust carrying infecting organism either in vegetative form or in form of spores. In fresh wound, bacteria have little time to multiply and there is practically no evidence of inflammatory tissue response, hence with few exceptions, bacteria are regarded as contaminants. But after a few hours, however, if sign of inflammation or other tissue response appear, then the bacteria must no longer be considered as contaminant but as infecting bacteria (Topley and Wilson, 1988).The commonest pyogenic bacteria often associated with infected wounds are Staphylococcus aureus, Streptococcus pyogenes, Pneumococcus sp and coliform bacilli, such as Escherichia coli, Proteus sp, Pseudomonas aeruginosa and other enteric bacilli. Aerobic organisms particularly Clostridium perfringes and other species of bacteriodes and aerobic cocci may also present (Klein et al.
Because they also encourage mucous secretions, macrophage activity on pneumococci is decreased while bacterial adhesion to the epithelium is increased. Pneumonia is a condition that aggravates the air sacs in one or both lungs. The air sacs may fill with fluid or pus causing cough with phlegm or pus, fever, chills, and difficulty breathing. Cyanosis occurs as a result of the decrease in gas exchange through the inflamed alveolar membrane and subsequent decline in hemoglobin saturation. One of the most common complications of the flu is a bacterial infection.
The absolute most normal causes include: • Inward breath or ingestion of micro-organisms that make bothering the sinuses and influence the invulnerable framework. • Bacterial development in the sinuses because of blockages and bodily fluid development. The cilia of the sinus layers are not ready to work appropriately because of bacterial action, and this causes swelling of the films. • At the point when allergens enter the aviation routes, they can aggravate the sinus films and prompt swelling and irritation. Some normal allergens incorporate dust, and dirt • Viral diseases can influence the cilia and cause an amassing of bodily fluid in the sinus depressions.
Infection can occur either from hematogenous seeding of the pathogen from another site in the body or from direct inoculation via traumatic or surgical wound. Acute infection may last for several days or weeks and may require antibiotics, when causative organism persists for more than 10 days and bone destruction is involved, the infection is considered as chronic osteomyelitis. Staphylococcus aureus is the single leading cause of both acute and chronic osteomyelitis in children and adults. Other organisms such as coagulase-negative staphylococci, Streptococcus spp, Enterococcus spp and Mycobacterium tuberculosis may also cause osteomyelitis but S. aureus is most prevalent bacteria found due to virulence factors that help it evade a number of the host
These patients are at a greater risk of infection from encapsulated bacteria – i.e. Streptococcus pneumonia, Haemophilus influenza serotype b (Hib) and Neisseria meningitidis. They are, thus, predisposed to infectious conditions elicited by these bacteria – e.g. : bacterial meningitis, bacterial pneumonia, and clinically significant respiratory and GIT infections.36-37 However, other types of infections may be due to Gram negative bacteria such as, Capnocytophaga canimorsus and the malaria parasite P. falciparum.36The incidence of post-splenectomy infections is 0.5% with 50% mortality; with children enduring severe infections. Literature reveals that the incidence of infections is higher in the 2 years following the surgery, especially from pneumococcal infections.
It can be caused by a number of factors such as : Gastroenteritis - this is typically acquired from food or water that has been contaminated by faeces or directly from another infected person. This causes infectious diarrhoea and the infectious agents can be bacteria, viruses or parasites. Common causative bacterial agents are Escherichia coli, Vibrio cholerae, Shigella dysenteriae and Clostridium difficile. Food allergies or food intolerance such as lactose intolerance. An adverse reaction to medication such as penicillin, antacids and laxatives.
Introduction In this experiment we are examining Streptococcus Mutans and Lactobacillus Acidophilus which are bacteria found in the mouth. The bacteria Streptococcus Mutans have been seen to have negative effects to the mouth such as tooth decay. Lactobacillus Acidophilus on the other side is seen as a good bacteria and has been used as a probiotic. Both of these bacterias grow within the mouth and can be collected through saliva. Our experiment is to compare the difference between two processes which could potentially lower or increase the amount of each bacteria in the mouth.