Chironomid hemoglobins are potent allergens. The allergenic and antigenic activities of these hemoglobins are studied with the help of RAST, RAST inhibition and double immunodiffusion. Human as well as rabbit antisera were used. It was shown that hemoglobins are the main antigenic/allergenic components in extracts of Camptochironomus tentans larvae. Furthermore, immunological cross-reactivity among larvae, pupae and adult midges of this species are shown to be due to the existence of hemoglobin antigenic determinants in all developmental stages of this insect.
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