1. What it is and the different types.

2. 1. Explain how vaccination works 2. Discuss responses of the government to the threat of new ‘flu strains. 3. Compare and contrast active, passive, natural & artificial immunity

3.  This is where you deliberately expose someone to antigenic material such as dead or inactive pathogens.  This fools the body into a full blown immune response, creating what?  Antibodies and Memory cells – what do these do?

4. Have a read through and note down the 5 different forms of antigenic material that can be administered intravenously or orally. (p.174)

5.  There are a couple of ways of controlling a disease through the use of vaccination: Herd vaccination Herd vaccination – this is where you vaccinate enough people to stop the pathogen spreading through the population. You’ve been herd vaccinated against polio, mumps, rubella etc. Around 85% of the population had to be vaccinated against smallpox to eradicate it. Ring vaccination Ring vaccination – this is used to stop new diseases from spreading by only vacinating a ‘ring’ of people or animals (if we’re talking about livestock here) to stop the disease spreading. -

6.  Influenza is an example of a disease that is able to mutate its antigens, making the secondary immune response very difficult.  Its is a deadly disease that is caused by a virus. http://www.youtube.com/watch?v=1WN_Kp- lrLg So what’s a pandemic and an epidemic??

7.  To stop another pandemic, “at risk” groups are immunised.  These include those over 65 and any other risk factors (eg?)  In 2006/7 74% of 65+ were immunised along with 42% of other “at-risk” groups.  Scientists research each year what strains of the ‘flu virus are our likely biggest threats.

8.  Let’s read through p.175 together…  Now all of you describe what each form of immunity is and give an example or 2 please…