Latest News & Articles from JJP Biologics News High S1-specific IgA antibody levels discriminate severely ill SARS-CoV-2 patients High S1-specific IgA antibody levels discriminate severely ill SARS-CoV-2 patients. The virus acts as high avidity matrix for neutrophils to… Read more Latest Videos SubscribeWant to Stay Informed? Get Our Latest UpdatesSubscribe to receive our regular updates I agree that my submitted data is being collected and stored. Leave this field empty if you're human: