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Vaccines-2013 - OMICS Group

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Ali Shams et al., J <strong>Vaccines</strong> Vaccin <strong>2013</strong>, 4:5http://dx.doi.org/10.4172/2157-7560.S1.0183 rd International Conference on<strong>Vaccines</strong> & VaccinationJuly 29-31, <strong>2013</strong> Embassy Suites Las Vegas, NV, USAAssessment of antibody titers and immunity to Hepatitis B in children after chemotherapyAli Shams, Faeze Salehi, Azam Hashemi, Mahmood Vakili, Fateme Zare and Nasrin EsphandyariShahid Sadoughi University of Medical Sciences and Health Services, IranObjective: There is a decrease in vaccine-specific antibody to certain vaccine-preventable diseases in children after chemotherapy,but the frequency of non-immune patients is not clear. In this case-control study, we investigated protection level to Hepatitis Binfection in children 6 months after completing chemotherapy.Methods: In this study 68 patients with cancer and 68 healthy donors were enrolled. Patients were 1.5 -12 years old with completedstandard chemotherapy at least for 6 months. All the patients and healthy donors were negative for HBsAg and HBeAg and hadreceived Hepatitis B vaccination. IgG antibody concentrations against Hepatitis B Virus (HBV) were determined in the patientsand healthy subjects serum by ELISA method. IgG antibody titer > 10 mIU/ml was considered as baseline protective titer forpreventing HBV infection.Results: Anti-HBs antibody titer in 19.12% of patients was less than 10 mIU/ml and 11.76% of the patients had borderlineantibody titer (10-20 mIU/ml). In healthy subjects 2.94% and 5.88% had antibody titer < 10 mIU/ml and 10-20 mIU/mlrespectively. According to statistical analysis frequency of non immune subjects in children with cancer was significantly higherthan those in healthy children (PV=0.024).Conclusion: Hepatitis B vaccination post-intensive chemotherapy in the children with cancer is strongly recommended.Keywords: Hepatitis B infection, vaccination, cancer, immunity.alishams@ssu.ac.irJ <strong>Vaccines</strong> Vaccin <strong>2013</strong>ISSN: 2157-7560, JVV an open access journal<strong>Vaccines</strong>-<strong>2013</strong>July 29-31, <strong>2013</strong>Volume 4 Issue 5Page 126

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