Table of Contents
Which organism can easily cause an infection?
Infectious diseases can be caused by: Bacteria. These one-cell organisms are responsible for illnesses such as strep throat, urinary tract infections and tuberculosis. Viruses.
Which of the following is the most frequently used pathogen portal of entry?
Mucosal surfaces are the most important portals of entry for microbes; these include the mucous membranes of the respiratory tract, the gastrointestinal tract, and the genitourinary tract.
What 4 bacteria are most commonly isolated in wound infections?
The most common causative organisms associated with wound infections include Staphylococcus aureus/MRSA, Streptococcus pyogenes, Enterococci and Pseudomonas aeruginosa.
What pathogen is most commonly associated with surgical wound infections?
The group of bacteria most commonly responsible for SSIs are Staphylococcus aureus strains.
What is a common organism?
If you had to guess the most abundant organism on the whole planet, you’d probably think of ants or, maybe, bacteria. But a newly discovered virus might trump them all. Pelagibacter ubique is often cited as the most common organism ever: it’s a third of all the single-celled organisms in the ocean.
Which type of bacterial enzyme helps spread streptococcus?
For example, hyaluronidase, an enzyme produced by pathogens like Staphylococcus aureus, Streptococcus pyogenes, and Clostridium perfringens, degrades the glycoside hyaluronic acid, found in connective tissue (Figure 2). This allows the pathogen to spread to deeper body tissues.
Which of the following organisms produce endotoxin?
Endotoxins are part of the outer membrane of the cell wall of Gram-negative bacteria. Endotoxin is invariably associated with Gram-negative bacteria whether the organisms are pathogenic or not.
What causes e coli in a wound?
The bacteria that cause necrotizing soft tissue infections are usually introduced when a small cut or scrape becomes contaminated with soil or saliva so anyone can be infected. Those at greater risk are those with an open wound, even a small cut, especially if it has been in contact with dirt or bacteria in the mouth.
What microorganism causes surgical site infection?
Infections after surgery are caused by germs. The most common of these include the bacteria Staphylococcus, Streptococcus, and Pseudomonas.
What microorganisms are capable producing disease?
A variety of microorganisms can cause disease. Pathogenic organisms are of five main types: viruses, bacteria, fungi, protozoa, and worms. Some common pathogens in each group are listed in the column on the right.