MCB4233 Immunology Practice Test: HIV & Hypersensitivity

The flashcards cover key concepts related to HIV, hypersensitivity reactions, and immunological responses.

IgE antibodies

A type of antibody that binds to $Fc ext{ } ext{e} ext{ }RI$ on mast cells, involved in allergic reactions.

HIV clinical latency phase

A stage during HIV infection where persistent replication occurs in lymphoid tissues while CD4 T cells gradually decline.

Arthus reaction

An example of Type III hypersensitivity, characterized by immune complex formation.

$T_H1$ response

Reverse transcription

The process by which HIV converts its RNA into DNA using reverse transcriptase.

Sensitization

The first exposure to an allergen that leads to class-switching to IgE.

Hypersensitivity Types

Classification of immune reactions; Types I (Immediate), II (Cytotoxic), III (Immune Complex), IV (Delayed-Type).

Mediator of Type I Hypersensitivity

IgE, involved in mast cell degranulation during allergic reactions.

Celiac disease

An autoimmune disease characterized by a $T_H1$ response against $ ext{ } ext{ } ext{ } ext{ } ext{b) } ext{ } ext{ } ext{ } ext{ } ext{ } ext{ } ext{ } ext{ } ext{ } ext{ } ext{ } ext{ } ext{ } ext{ } ext{ } ext{ } ext{ } ext{ } ext{ } ext{ } ext{ } ext{ } ext{ } ext{ } ext{ } ext{ } ext{ } ext{ } ext{ } ext{ } ext{ } ext{ } ext{ } ext{ } ext{ } ext{ } ext{ } ext{ } ext{ } ext{ } ext{ } ext{ } ext{ } ext{ } ext{ } ext{ } ext{ } ext{ } ext{ } ext{ } ext{ } ext{ } ext{ } ext{ } ext{ } ext{ } ext{ } ext{ } ext{ } ext{ } ext{ } ext{ } ext{ } ext{ } ext{ } ext{ } ext{ } ext{ } ext{ } ext{ } ext{ } ext{ } ext{ } ext{ } ext{ } ext{ } ext{ } ext{ } ext{ } ext{ } ext{ } ext{ } ext{ } ext{ } ext{ } ext{ } ext{ } ext{ } ext{ } ext{ } ext{ } ext{ } ext{ } ext{ } ext{cciated with T cell responses.

Drug-induced hemolytic anemia

A Type II hypersensitivity reaction caused by IgG antibodies.

Poison Ivy

An example of Type IV hypersensitivity reaction, leading to contact dermatitis.