Recent Lessons

Show all results for ""

Feature Overview

Ace your exams with our all-in-one platform for creating and sharing quizzes and tests.

Quizzes

Create quizzes and tests automatically from your content using AI.

Flashcards

Automatically turn your notes into digital flashcards.

Share, Export & Embed

Share with classmates or export to Excel and your learning management system.

Stats & Reporting

Auto-grading quizzes and tests with detailed stats and reports.

Mobile Apps

The smarter way to study – wherever you are.

Pricing

Search...

6 Questions

0 Views

Attenuated Live Vaccines

Choose a study mode

Play Quiz

Study Flashcards

Spaced Repetition

Chat to lesson

Podcast

Play an AI-generated podcast conversation about this lesson

Questions and Answers

What is the result of receiving an attenuated vaccine?

Severe symptoms compared to actual infections

Sub-clinical disease with symptoms less intensive compared to actual infections (correct)

No response to the vaccine

Full-blown disease with severe symptoms

How has biotechnology been used to attenuate pathogens?

By increasing their virulence

By deleting all genes

By duplicating their genetic material

By adding or 'knocking out' a gene (correct)

Why are mutants ideal as vaccines?

They cause severe symptoms

They are difficult to produce

They mimic the natural infection process without causing severe symptoms (correct)

They elicit a weak immune response

What is an advantage of attenuated live vaccines?

Increased immunogenicity and production of memory Signup and view all the answers

What is the purpose of selectively deleting or mutating genes in pathogens?

To weaken the organism Signup and view all the answers

What is the outcome of using mutants as vaccines?

Durable immune response Signup and view all the answers

Study Notes

Attenuated Live Vaccines

Attenuated live vaccines consist of weakened or attenuated organisms that can proliferate and provide a continuous antigen to the host.
People who receive attenuated vaccines develop sub-clinical disease, with symptoms that are less intensive compared to actual infections.
Mutants or non-virulent organisms are ideal as vaccines because they mimic the natural infection process without causing the same type of symptoms.
Biotechnology is used to attenuate pathogens by adding or “knocking out” a gene in these organisms, making them weaker.

Advantages

Attenuated live vaccines have increased immunogenicity and production of memory cells.
They provide a continuous source of antigen, which elicits a durable immune response.

Studying That Suits You

Use AI to generate personalized quizzes and flashcards to suit your learning preferences.

Description

Learn about attenuated live vaccines, how they work, and their benefits in providing a durable immune response. Discover the role of mutants and non-virulent organisms in vaccine development.