Browsing by Author "Namujju, B. Proscovia"

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    Low Avidity of Human Papillomavirus (HPV) Type 16 Antibodies is Associated with Increased Risk of Low-Risk but not High-Risk HPV Type Prevalence
    (BioMed Central, 2011-06-06) Namujju, B. Proscovia; Hedman, Lea; Hedman, Klaus; Banura, Cecily; Mbidde, K Edward; Kizito, Dennison; Byaruhanga, Romano; Muwanga, Moses; Kirnbauer, Reinhard; Surcel, Heljä-Marja; Lehtinen, Matti
    Background Low avidity of antibodies against viral, bacterial and parasitic agents has been used for differential diagnosis of acute versus recent/past infections. The low-avidity antibodies may however, persist for a longer period in some individuals. Findings We studied the association of human papillomavirus (HPV) type 16 antibody avidity with seroprevalence to HPV types 6/11/18/31/33/45. Antibody avidity was analysed for 365 HPV16 seropositive pregnant Finnish and Ugandan women using a modified ELISA. Low avidity of HPV16 antibodies was found in 15% of Finnish and 26% of Ugandan women. Ugandan women with low-avidity HPV16 antibodies had an increased risk estimate for HPV6/11 (odds ratio, OR 2.9; 95%CI 1.01-8.4) seropositivity but not to high-risk HPV types 18/31/33/45. Conclusion Association of the low avidity HPV16 antibody "phenotype" with possible susceptibility to infections with other HPV types warrants investigation.