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Hiv Test Sensitivity Generation One

Here's a taste of what has to offer on this topic:
Ask the Experts

First Generation Elisa Sensitivity

Hi, Dr Bob. I love reading your responses and I adore your upbeat attitude.My first husband was diagnosed with Aids in 1986. I was tested three and 1/2 months past last possible exposure and was negative (elisa). I didnt retest even though I was...
Robert J. Frascino, M.D.

Response from Robert J. Frascino, M.D.

The Robert James Frascino AIDS Foundation
Hi,1. The first generation ELISA tests were quite accurate. However, the generation of the test has nothing to do with the recommendation to test out to six months following a significant HIV exposure. (That recommendation is the same no matter what... Read more »

Dr. Conway - Canadian 4th Generation Tests in CANADA??

Hi Dr. Conway,I just recently was tested NEGATIVE at 16 weeks in Canada after visiting a local... Read more »


Dear Doctor,I really want to ask that if the person really have to be tested at 3 months mark then... Read more »
U.S. Food and Drug Administration

Fourth Generation HIV Diagnostic Test Approved, Permitting Earlier Detection of Infection

On June 18, 2010, FDA approved a new, "4th generation" HIV diagnostic assay. The ARCHITECT HIV Ag/Ab Combo Assay is the first HIV diagnostic assay that simultaneously detects both antigen and antibodies for the Human Immunodeficiency Virus (HIV).... Read more »
HIV i-Base

Third- vs. Fourth-Generation HIV Testing: Almost Half of UK Clinics Out of Step With National Guidelines

In 2011, prompted by calls to the i-Base phoneline reporting wide diversity in the information given to people contacting GUM clinics for HIV testing, i-Base wanted to understand why this was often different to UK guidelines. Although 4th generation... Read more »
U.S. Centers for Disease Control and Prevention

Cheap, Ultra-Sensitive Color Test Spots Early HIV, Cancer

Researchers at the Imperial College of Science, Technology and Medicine, London, United Kingdom, have developed a test to detect viruses and disease biomarkers. This new test is reported to be 10 times more sensitive than the best available today.... Read more »
amfAR, The Foundation for AIDS Research

Tackling HIV/AIDS Among Key Populations: Essential to Achieving an AIDS-Free Generation

The U.S. President's Emergency Plan for AIDS Relief (PEPFAR) has embarked on a historic effort to ensure an AIDS-free generation. 1 This visionary initiative aligns with broader international efforts that aim to lay the foundation for the eventual... Read more »
Connect With Others

4th Generation HIV Test

Posted by Trophy

An arsenal of laboratory methods are available to screen blood, diagnose infection, and monitor disease progression in individuals infected by HIV. These tests can be classified into those that: (a) detect antibody, (b) identify antigen, (c) detect... Read more »

The 3d Generation Test and False Positives: Help!

Posted by Anonymous, 3 Replies
I've been reading what people like Not Scared and others have written about the 3d generation Elisa test that tests for both HIV-1 and HIV-2. I got one of those blood tests yesterday and it is being sent to the Nichols Institute in California. I... Read more »

Test generation I, II, III, what's the difference?

Posted by Anonymous, 1 Reply
Hi, I was wondering if anyone knows the differences, or can give me a pointer to find the differences, about the different generation tests. I understand the newer ones are supposed to be more sensitive at early stage. But has there been any... Read more »

Home Access Test- What is a First Generation Test

Posted by Anonymous, 1 Reply
I have taken the Home Access test which I have learned is a First Generation Test. I was negative at 35 days which made me happy. I know the window for the most modern ELISA tests is 25 days on Average. I also know that the Home Access uses a 1st... Read more »