Abnormalities of measles antibody response in human immunodeficiency virus type 1 (HIV-1) infection.
The finding that severe measles occurs in immunized as well as nonimmunized human immunodeficiency virus (HIV)-infected individuals suggests that both immunologic memory and the initial response to measles may be impaired by HIV infection. That the initial response is affected was supported by the finding that post-measles immunization titers of HIV-infected babies were significantly lower (p = 0.01) than those of normal babies. Poor immunologic memory was evidenced in HIV-infected children by lower titers than in normal children (p < 0.001) and by a continuing decline in measles antibody that was not arrested by reimmunization. Impaired memory appeared to be associated with defective avidity maturation. HIV-infected babies and infants or children had a significantly lower avidity index (AI) than age-matched normal children (p < 0.01). HIV-infected adults, who were infected with HIV following infection with measles, did not have AI values significantly different from normal adults (p = 0.18) but had significantly greater values than did HIV-infected babies and children (p < 0.01). Thus, in contrast to infants and children who were infected with HIV before measles immunization, the adult immune response to measles was less affected.
Ahmanson Pediatric Center, Department of Medicine, Cedars-Sinai Medical Center, Los Angeles, California 90048, USA.
P A
PA
Brunell
V
V
Vimal
M
M
Sandu
T M
TM
Courville
E
E
Daar
V
V
Israele
D000328:Adult; D000914:Antibodies, Viral / Q000096:biosynthesis*; D000915:Antibody Affinity; D018791:CD4 Lymphocyte Count; D002648:Child; D002675:Child, Preschool; D004797:Enzyme-Linked Immunosorbent Assay; D015658:HIV Infections / Q000150:complications*; D015497:HIV-1; D006801:Humans; D007114:Immunization; D007117:Immunization, Secondary; D007156:Immunologic Memory; D007223:Infant; D008457:Measles / Q000276:immunology* / Q000517:prevention & control; D008458:Measles Vaccine / Q000008:administration & dosage / Q000276:immunology; D008459:Measles virus / Q000276:immunology*; D022542:Measles-Mumps-Rubella Vaccine; D009108:Mumps Vaccine / Q000008:administration & dosage / Q000276:immunology; D012411:Rubella Vaccine / Q000008:administration & dosage / Q000276:immunology; D017778:Vaccines, Combined / Q000008:administration & dosage / Q000276:immunology
D000914:Antibodies, Viral; D008458:Measles Vaccine; D022542:Measles-Mumps-Rubella Vaccine; D009108:Mumps Vaccine; D012411:Rubella Vaccine; D017778:Vaccines, Combined