A 15-Year-Old Girl Develops Malaise, Headache, and Low-Grade Fever, Followed

question 1

Multiple Choice

A 15-year-old girl develops malaise, headache, and low-grade fever, followed by pharyngitis and cervical lymph node enlargement as a result of infectious mononucleosis caused by Epstein-Barr virus (EBV) . Her acute symptoms resolve within 2 weeks, and the fatigue improves within 3 months. All of the following are required for CD8⁺ cytotoxic T lymphocyte (CTL) recognition and killing of EBV-infected cells EXCEPT:

• A)β₂-Microglobulin
• B)HLA-A, -B or -C
• C)CD28
• D)LFA-1 (leukocyte function-associated antigen-1)
• E)TAP (transporter associated with antigen processing)

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Definitions:

Correlational Design

A research method that examines the relationships between variables to identify patterns and predict outcomes without implying causation.

Attractive Waiters

The concept that physically appealing servers may influence customers' dining experiences and perceptions of the service quality.

Poor Performance Evaluation

An assessment that indicates an employee's work quality and achievements are below the expected standards.

Double-Blind Procedure

A double-blind procedure is a research or experimental method in which both the participants and the researchers are unaware of which participants are receiving the treatment and which are receiving a placebo.