ELISA Test for HIV | A Level Biology

This video explains how antibodies are used to test for HIV.
ELISA stands for Enzyme-Linked Immunosorbent Assay - the final result is determined by a colour change caused by an enzyme-controlled reaction.
ELISA tests are used to test for a wide range of allergens, antibodies, antigens, hormones and other proteins - so it's worth understanding how they work.
Printable Resources: starfishrevisi...

[@EG-gb2ol]

I watched several videos and could not wrap my head around how it worked. you're description was so helpful, thank you so much!!

[@saraleena007]

wow! such good descriptions. and a very peaceful voice! Thank you. Im preparing for my october a level exams!!

[@alevelbiologyvideos2574]

Thank you! All the best in your exams :)

[@hwelchuk]

I don't usually leave comments but just wanted to say thanks for this! This is such a nice and concise description of the ELISA test! I feel confident about it for my mocks in november now :)!

[@jenni2971]

This was amazingly explained thank you so much!!

[@pallavisingh9260]

Helpful explanation

[@alecneate76]

Do we not need to know the substrate or the actual colour change result?