Causes of false-negative eia results include the following: technical error testing during the window period [31] decreased host immunoglobulin production such as in a common variable immunodeficiency [32] and advanced aids [33] hiv-2 if tests to detect hiv-1 only are used non?clade-b hiv-1 [34] or type n or o strains of hiv-1 [35] is this true, whether a person got in infected with hiv or aids infection from a person who might have early hiv infection or chronic hiv infection if the risk was sexual or contaminated needle or etc would you have to take different or specialist tests or physical exams. How can you be sure of no errors. And what truly causes it. What if the tests can't detect the hiv virus or the aids infection because of not in blood but still infected. What about ebv virus does that affect results. But ebv causes high wbc not low wbc. So just wanted to know. Say for instance a person came in contact with an hiv or aids infection through a dirty needle in vain and they got tested and diagnosed with ebv because of low wbc count in 2 months of exposure and then got tested again in 20 weeks got hiv ab, and hiv 1/2, eia with reflexes. Negative and plan in getting tested again in the next 4 or 5 weeks. What are the odds of these tests be accurate in 6 months of exposure of either hiv or aids infection?