We read with interest the report by Giulieri et al1 on professional exposures to patients with acute primary human immunodeficiency virus (HIV) infection (PHI) with high viral load and a positive P24 antigen test result but no detectable antibodies. The authors warned about the limits of the rapid HIV test, which does not include p24 antigen detection. We recently experienced these limits.
Boillat N, Bally F, Péter O, Praz G, Troillet N. Occupational Exposure and Rapid HIV Test. Arch Intern Med. 2008;168(13):1468. doi:10.1001/archinte.168.13.1468-a