What are the 4 types of organisms that cause infection?

What are the 4 types of organisms that cause infection?

Pathogen types. There are different types of pathogens, but we’re going to focus on the four most common types: viruses, bacteria, fungi, and parasites.

What is it called when a microorganism causes damage to body tissues?

The pathogenic organism typically causes damage due to its own growth process. The promotion of disease is characterized by the ability of a pathogenic organism to enter a host and inflict damage and destruction onto the host cell.

What is the most common cause of tissue damage caused by bacteria?

Group A Strep Thought to Be Most Common Cause There are many types of bacteria that can cause the “flesh-eating disease” called necrotizing fasciitis. Public health experts believe group A Streptococcus (group A strep) are the most common cause of necrotizing fasciitis.

Which microorganism can cause exogenous infections?

The infection can be caused by the normal flora of the skin but may also be caused by exogenous bacteria, most commonly, group A Streptococcus or Staphylococcus.

Which organism can cause infection?

The organisms that cause infections are very diverse and can include things like viruses, bacteria, fungi, and parasites. You can acquire an infection in many different ways, such as directly from a person with an infection, via contaminated food or water, and even through the bite of an insect.

How does bacteria cause cell and tissue damage?

Sometimes bacteria multiply so rapidly they crowd out host tissues and disrupt normal function. Sometimes they kill cells and tissues outright. Sometimes they make toxins that can paralyze, destroy cells’ metabolic machinery, or precipitate a massive immune reaction that is itself toxic.

What is systemic infection?

Systemic means affecting the entire body, rather than a single organ or body part. For example, systemic disorders, such as high blood pressure, or systemic diseases, such as the flu, affect the entire body. An infection that is in the bloodstream is called a systemic infection.

What are exogenous causes?

When you’re identifying causes of disease, toxins in your environment would be exogenous causes (they come from outside you), while genetic predisposition (something inside you) would be considered an endogenous cause.