What Problems Could Be Encountered When Practicing Variolation to Protect

question 72

Multiple Choice

What problems could be encountered when practicing variolation to protect against smallpox? (Select all that apply)

• A) approximately 1% of patients developed active smallpox disease and died
• B) some patients suffered an allergic reaction to the variolation process
• C) variolation is only effective in younger people
• D) while variolated patients were developing their immunity, they were highly contagious and represented an epidemic threat

Describe the roles and characteristics of Major Histocompatibility Complex (MHC) molecules.

Identify different types of immune cells and their functions.

Explain the concept of antibody diversity and class switching.

Understand the interactions between antigens, MHC molecules, and T cell receptors.

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