Neonates,elderly Persons,and Otherwise Immunocompromised Patients Are Particularly Susceptible to Infections

question 12

Multiple Choice

Neonates,elderly persons,and otherwise immunocompromised patients are particularly susceptible to infections with Listeria monocytogenes.These patients typically have fever and chills,often progressing to hypotension and septic shock.In healthy individuals,however,such intracellular microbes are usually effectively phagocytosed and killed by macrophages,which become activated via:

• A)CD40L-CD40 interactions between activated T helper cells and macrophages
• B)CD28-B7 interactions between activated T cells and macrophages
• C)Fas ligand-Fas interactions between activated cytotoxic T lymphocytes and macrophages
• D)TCR-MHC class II interactions between activated T helper cells and macrophages
• E)LFA-1-ICAM-1 interactions between activated T cells and macrophages

---

Definitions:

Just-World Hypothesis

The cognitive bias that a person's actions are inherently inclined to bring morally fair and fitting consequences to that person.

Ethnocentrism

The belief that one’s own ethnic group, nation, or religion is superior to all others.

Interdependence

A relationship between entities where each is mutually dependent on the other, often used to describe economic or ecological systems.

Acculturation

The process of adopting the cultural traits or social patterns of another group, especially by contact and interaction.