15 Microbial Mechanisms of Pathogenicity -- Part 1
You are a transplant nurse.
He told you that his physician stopped giving him iron supplements.
The patient knows the supplements were used.
On page 424, you can read about siderophores.
The answers to In the Clinic questions can be found online.
The ability to cause disease by overcoming the defenses of a host is one of the specific properties of microorganisms that contribute to pathogenicity.
Microbes don't try to cause disease, they just get food and defend themselves.
The presence of cells can cause symptoms in a host.
Humans don't think it makes sense for a parasites to kill its host.
Nature doesn't have a plan for evolution, the genetic variations that give rise to evolution are random.
Natural selection says that organisms adapted to their environments will reproduce.
The behavior of one person influences the behavior of another person.
Many of the properties that contribute to virulence are not known.
If the microbe overwhelms the host defenses, disease results.
The main portals of entry are identified.
Explain how the microbes adhere to the cells.
Unbroken skin is hard to break.
To cause disease, most pathogens must gain access to the host, adhere to the host tissues, penetrate or evade the host on the skin, and then cause disease.
The conjunctiva does not cause disease by directly damaging host tissue.
The white of the eyeballs is covered by the eyelid.
The disease is caused by the build up of waste products.
There are some organisms that can cause disease without entering the body.
The conjunctiva can be used to acquire Pathogens.
When barriers are penetrated or the skin is injured, there are portals of entry for pathogens.
tetanus and gangrene can be transmitted parenterally by HIV, the hepatitis viruses, andbacteria that gain access to the body by penetrat.
Kerry Santos, a board-certified eye doctor for 20 years, says the respiratory tract is the easiest to enter for infectious organisms.
TheMicrobes have had a long day.
The common cold, pneumonia, Tuberculosis, and their pupils are fixed and do not respond to light, are diseases that are commonly contracted via the respi ten patients.
Microorganisms can gain access to the gastrointestinal tract through food and water.
People that survive can cause disease.
It makes vision blurry.
The genitourinary tract can be used to enter sexually contracted pathogens.
Unless stated otherwise, all pathogens arebacteria.
The name of the viruses is given.
After entering the body via the gastrointestinal tract, these pathogens can cause disease.
After entering the body via the parenteral route, these pathogens can cause disease.
The symptoms of the disease when swal owed are not necessarily caused by the disease.
If the samebacteria are rubbed on the skin, there is no reaction, only one of several factors, which is the portal of entry.
If they gain access to more than one portal of entry.
Disease might not occur if the preferred portals of the body are not used.
As the number of pathogens on other structures increases, the likelihood of disease increases.
The majority of the adhesins studied were found to be infectious for 50% of the population.
The 50 is not far away.
The value of thereceptor on host cells is an absolute value, rather than being used to compare sugars.
Different cells of the same host can have different recep through the skin.
If adhesins, receptors, or both can be the ID50 for inhalation anthrax is inhalation of 10,000 to 20,000 altered to interfere with adherence, and the ID50 for gastrointestinal anthrax is inges vent (or at least controlled).
There are many adhesins.
For example, the LD50 for tran makes up dental plaque and contributes to dental caries botulinum toxin in mice.
In other words, com Microbes have the ability to come together in mass, cling to the other two toxins, and take in and share available toxins to cause symptoms.