AQA A/S Biology - Biology and Disease (BIOL1)

Yes but I doubt I will.

if you hate it then it would make sense to drop it wouldn't it?

no offence but ever heard of people taking subjects they hate cos they HAVE to...but you are right..it's an awful subject for me

What did you guys write for that
'How would this pie chart (of influenze strains) help a company producing vaccines?'

Something like:

'They could analyse the results and produce an antibody that targeted the most prolific strain, which would be more beneficial than vaccinating against a weaker, rarer strain.'

We went through the answers afterwards and it was correct

It was a 2 mark question.

Surely the company should target a strain that hadn't spread yet in order to avoid that spreading?

If you think about it, strain 1 had infected the vast majority of sufferers, so there's no point in vaccinating against that as it's bound to change it's antigens sometime soon?

Did your teacher have some sort of a mark scheme?

another 2 marks lost for me.

I think we were supposed to assume that the vaccination is given out to prevent people becoming ill, not to prevent the disease spreading.

It could mutate, but that isn't going to happen very often hence it makes more sense to vaccinate people against the most prevalent threat.

We didn't have a mark scheme, so I may be wrong but it's highly unlikely, it makes sense when you think about it.

You can't develop the flu, it must be caught, so hence when it comes to flu-

preventing people from becoming ill and preventing the spread of the disease are one and the same thing.

Ah well. Life goes on even if I am wrong.

They aren't the same thing, preventing the spread of disease is an attempt to eliminate or isolate a disease whilst protecting against it is... just that.

Why couldn't they use it to develop a combined vaccine?

Surely that would be more effective..

That's what I thought anyway.