Immunogenicity of subunit trivalent influenza vaccine in children with acute lymphoblastic leukemia

被引:42
作者
Brydak, LB [1 ]
Rokicka-Milewska, R
Machala, M
Jackowska, T
Sikorska-Fic, B
机构
[1] Natl Inst Hyg, Dept Virol, Resp Unit, Natl Influenza Ctr WHO, PL-00791 Warsaw, Poland
[2] Med Acad, Dept Pediat Hematol & Oncol, Warsaw, Poland
关键词
influenza; vaccination; leukemia;
D O I
10.1097/00006454-199802000-00009
中图分类号
R392 [医学免疫学]; Q939.91 [免疫学];
学科分类号
100102 ;
摘要
Background. The aim of this study was to assess humoral response to influenza vaccine in children with acute lymphoblastic leukemia. Methods. Studies were performed in 25 patients previously vaccinated against influenza (Group A) and in 20 children who had never been immunized before (Group B). In Autumn, 1996, they were vaccinated with subunit trivalent influenza vaccine containing 15 mu g of hemagglutinin of A/Singapore/6/86, A/Wuhan/359/95 and B/Beijing/184/93. Antihemagglutinin (HI) and antineuraminidase antibody titers were determined before immunization and 3 weeks and 6 months after vaccination by the hemagglutinin inhibition test and the neuraminidase inhibition test. All results were presented as the geometric mean titer of antibodies, mean fold increase of antibody titer, protection rate and response rate. Results. In Group A mean fold increase of HI antibodies ranged from 17.2 to 26.7 three weeks after vaccination and from 22.1 to 38.2 six months after vaccination, while in Group B it ranged from 15.7 to 22.6 and from 30.3 to 39.3, respectively. In the case of neuraminidase, mean fold increases for Group A varied fi om 9.2 to 13.2 three weeks after immunization and from 15.6 to 21.1 sis months after vaccination, whereas for Group B they varied from 5.5 to 8.3 and from 14.4 to 23.4, respectively, Sis months after vaccination the proportion of subjects with HI antibodies greater than or equal to 1:40, as well as those with at least 4-fold increase of BI antibody titers, ranged from 68 to 100% in Group A and from 90 to 100% in Group B. No vaccinated child was infected with the influenza virus; the vaccine was well-tolerated and did not cause any adverse reactions, Conclusions. The results obtained in this study indicate that influenza vaccine is immunogenic in patients with acute lymphoblastic leukemia, despite their serious disease.
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页码:125 / 129
页数:5
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