Functional HIV-1 specific IgA antibodies in HIV-1 exposed, persistently IgG seronegative female sex workers.
Broliden K, Hinkula J, Devito C, Kiama P, Kimani J, Trabbatoni D, Bwayo JJ, Clerici M, Plummer F, Kaul R. Immunol Lett. 2001 Nov 1; 79(1-2):29-36.