Chain of Infection

Front

What is the chain of infection?

Back

The chain of infection is a series of steps that describes how infections are transmitted from one person to another. It includes the infectious agent, reservoir, portal of exit, mode of transmission, portal of entry, and susceptible host.

Front

What determines the use of PPE by healthcare workers?

Back

The type of procedure performed on a patient determines the use of personal protective equipment (PPE) by healthcare workers.

Front

What is contact transmission?

Back

Contact transmission is the spread of infection through direct physical contact, such as shaking hands with someone.

Front

What comes after portal of exit in the chain of infection?

Back

Mode of transmission comes after portal of exit in the chain of infection.

Front

What is an opportunistic infection?

Back

An opportunistic infection occurs when the body's immune system is weakened, allowing normally harmless organisms to cause disease.

Front

Who is a susceptible host?

Back

A susceptible host is an individual who is more likely to contract a disease, such as the elderly or children.

Front

What is a causative agent?

Back

A causative agent is a pathogen (bacteria, virus, fungus, or parasite) that causes disease.

Front

What is a reservoir in the context of infection?

Back

A reservoir is a place where a pathogen lives and multiplies, which can be humans, animals, or the environment.

Front

What is the portal of entry?

Back

The portal of entry is the way through which a pathogen enters a susceptible host, such as through the skin, respiratory tract, or mucous membranes.

Front

What is the role of the portal of exit in the chain of infection?

Back

The portal of exit is the route through which a pathogen leaves the reservoir to infect a new host.