In vitro studies of human ragweed allergy: changes in cellular and humoral activity associated with specific desensitization.

Specific hay fever therapy has long been based on the inoculation of pollen extracts, a regimen whose efficacy is not definitely established and whose mode of action is poorly understood (1). At the clinical level, injection of the culpable antigens in subreactive amounts is often followed by symptomatic improvement and diminished allergic responses of the… CONTINUE READING