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Allergic Diseases
Coronaviruses
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Coronaviruses and Allergic Diseases

Assess the Safety of Administering a Second Dose of a COVID-19 mRNA Vaccine in Individuals Who Experienced a Systemic Allergic Reaction to an Initial Dose

Randomized, placebo-controlled, crossover study to assess risk of recurrence of allergic reactions in individuals who had an immediate systemic allergic reaction after 1st dose of an mRNA COVID-19 vaccine and aiming to explore the underlying mechanism(s) of these reactions.

Systemic Allergic Reactions to SARS-CoV-2 Vaccination

Now that COVID vaccines have been approved for children this research is being expanded to determine whether highly allergic children or children with mast cell disorders (a buildup of the white blood cells that release substances causing symptoms similar to an allergic reaction) are more likely