n/a
Abstract Title:

Unexpectedly high incidence of persistent itching nodules and delayed hypersensitivity to aluminium in children after the use of adsorbed vaccines from a single manufacturer.

Abstract Source:

Vaccine. 2003 Dec 8 ;22(1):64-9. PMID: 14604572

Abstract Author(s):

Elisabet Bergfors, Birger Trollfors, Annica Inerot

Article Affiliation:

Elisabet Bergfors

Abstract:

During trials of aluminium adsorbed diphtheria-tetanus/acellular pertussis vaccines from a single producer, persistent itching nodules at the vaccination site were observed in an unexpectedly high frequency. The afflicted children were followed in a longitudinal observational study, and the presence of aluminium sensitization was investigated in the children with itching nodules and their symptomless siblings by patch tests. Itching nodules were found in 645 children out of about 76,000 vaccinees (0.8%) after both subcutaneous (s.c.) and intramuscular (i.m.) injection. The itching was intense and long-lasting. So far, 75% still have symptoms after a median duration of 4 years. Contact hypersensitivity to aluminium was demonstrated in 77% of the children with itching nodules and in 8% of the symptomless siblings who had received the same vaccines (P<0.001). Children with persistent itching nodules and/or aluminium sensitization should be warned about aluminium containing products (e.g. vaccines and antiperspirants). The reason for the high incidence of itching nodules after SSI vaccines is unknown and should be further investigated.

Study Type : Human Study
Additional Links
Anti Therapeutic Actions : Vaccination: All : CK(6351) : AC(662)
Problem Substances : Aluminum : CK(533) : AC(185)

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