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An opportunistic infection (OI) is an infection that occurs only when the host's defense systems (ie, the immune system) are weakened. The common characteristic of all agents that cause opportunistic infections is that they rarely affect individuals with healthy immune systems. For example, the disease AIDS (acquired immunodeficiency syndrome) is a classic cause of immune system depression and is associated with many opportunistic infections, including toxoplasmosis, pneumocystis pneumonia (PCP), and others.

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Infection that attacks an individual already weakened by disease?

Opportunistic Infection. Pg. 90 in Memmler's The Human Body in Health and Disease 12th Edition.


Is caused by a pathogen that does not normally produce an illness in healthy humans?

opportunistic infection


Any treatments to opportunistic infection?

There are many different opportunistic infections and many different ways to treat them.


What infection is bad for a person with AIDS but does not harm a healthy one?

These infections are called "opportunistic infections." They are called opportunistic because a weakened immune system is necessary for them to cause serious infection.


An infection is caused by a pathogen that normally does not cause disease unless the host is weakened by another condition?

Opportunistic Infection


Which phase of HIV infection is characterized by opportunistic infections?

Phase III


Why hospital patient are at increased risk for opportunistic infection?

The ones who might already have an infection or have a low immune level.


What caused by a pathogen that does not normally produce an illness in healthy humans?

opportunistic infection


What is meant by opportunistic infection?

An infection that develops only when a person's immune system is weakened.


What infection is a pathogen that normally does not cause disease unless the host is weakened by another condition?

An opportunistic infection is a pathogen that only causes disease in a host with a weakened immune system or other underlying condition. These infections take advantage of the weakened state of the host to cause illness.


Is hives an opportunistic infection?

Hives, also known as urticaria, are not considered an opportunistic infection. Instead, they are a skin reaction characterized by raised, itchy welts and can result from various triggers, including allergies, stress, or medications. Opportunistic infections typically occur in individuals with weakened immune systems, whereas hives are an immune response that can affect anyone, regardless of their immune status.


What is the most common life threatening opportunistic infection affecting people living with AIDS or HIV?

AIDS