Yvonne Maldonado

Publication Details

  • Immunologic Response to Oral Polio Vaccine in Human Immunodeficiency Virus-infected and Uninfected Zimbabwean Children PEDIATRIC INFECTIOUS DISEASE JOURNAL Gnanashanmugam, D., Troy, S. B., Musingwini, G., Huang, C., Halpern, M. S., Stranix-Chibanda, L., Shetty, A. K., Kouiavskaia, D., Nathoo, K., Chumakov, K., Maldonado, Y. A. 2012; 31 (2): 176-180


    Poliovirus eradication is dependent on maintaining adequate community-wide levels of serologic protection. Many African countries with conditions that favor continued wild poliovirus propagation also have a high prevalence of pediatric human immunodeficiency virus (HIV) infection. Data are limited regarding the degree of serologic immunity conferred on HIV-infected children after immunization with oral polio vaccine (OPV).This was a cross-sectional study correlating HIV infection and neutralizing antibodies against poliovirus serotypes 1, 2, and 3 in 95 Zimbabwean children 2 months to 2 years of age, born to HIV-infected mothers, who received OPV according to the national schedule.HIV-infected children had significantly lower rates of seroconversion to all 3 poliovirus serotypes than HIV-uninfected children (60%, 67%, and 47% vs. 96%, 100%, and 82%, P = 0.001, 0.0003, and 0.015 for serotypes 1, 2, and 3 in HIV-infected and uninfected children, respectively, after ?3 OPV doses). Among poliovirus seroconverters, HIV-infected children also had significantly lower geometric mean titers against serotypes 1 and 2 than HIV-uninfected children (geometric mean titers: 198 and 317 vs. 1193 and 1056, P = 0.032 and 0.050, for serotypes 1 and 2, respectively, after ?3 OPV doses). In addition, HIV-infected children had significantly higher levels of total IgG and significantly lower CD4% and mean weight than HIV-uninfected children. Of note, none of the HIV-infected children were receiving antiretroviral therapy, and 71% had a CD4% indicating severe immunodeficiency.Pediatric HIV infection is associated with a poor serologic response to OPV, which could pose an obstacle to global polio eradication.

    View details for DOI 10.1097/INF.0b013e31823faa5f

    View details for Web of Science ID 000299316500016

    View details for PubMedID 22146742

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