Question

What are the differences between 3rd and 4th generation elisa tests

23 September 2010. Related: All topics, HIV testing.

Thank you for your question.

All the answers you need are on this page

Lisa Thorley • 15 December 2016

Hi Manish,

Please see quesiton one here:

http://i-base.info/qa/what-are-the-most-asked-questions
Manish • 15 December 2016

plz provide me all generation of elisa in some details
Simon Collins • 29 April 2016

Please see this FAQ page for questions about HIv testing:
http://i-base.info/qa/factsheets/hiv-transmission-and-testing

Or in this online guide:
HIV testing and risk of transmission
Gun • 29 April 2016

Is 4 th generation Elisa test accurate after 6 months
Charlotte Walker • 4 October 2010

Yes. Fourth generation is accurate enough to detect 95% of infections after 28 days. Both are still accurate after 3 months (when they detect more than 99.99% of infections.
Rob • 3 October 2010

Are they both accurate after 3months ?
Charlotte Walker • 28 September 2010

The 3rd generation tests look for antibodies (the body’s immune response), 4th generation tests look for antigens (proteins from the virus itself) as well as antibodies. This means the fourth generation test is more accurate in a shorter time as it does not only rely on the speed at which the body can generate an immune response.
rob • 23 September 2010

Hi it doesn’t quite say what the differences are? Could you tell me?