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New research from the Peter Doherty Institute of Infection and Immunity (Doherty Institute), es malo tomar alcohol con sildenafil The University of Melbourne and WEHI has unlocked key information in our understanding of molecular immune responses to COVID-19.

Following COVID-19 infection, virus-specific antibodies are generated, which can both neutralize the virus and clear the infection. While much has been said about the importance of Immunoglobulin G (IgG) antibodies for protection and control of SARS-CoV-2, the study of the role of Immunoglobin A (IgA) antibodies against SARS-CoV-2 has been relatively neglected throughout the pandemic. Until now.

In a paper published Oct. 23 in Clinical & Translational Immunology, the scientists conducted an experimental study to compare antibody responses to the virus in blood serum from people who had recovered from COVID-19.

University of Melbourne’s Samantha Davis, Ph.D. Researcher at the Doherty Institute, is the lead author of the paper.

“In simple terms, we’ve deconstructed blood in our lab to measure its ability to smother the virus and to activate immune cells to kill SARS-CoV-2,” Davis explained.

“While we knew that IgG is very important in the antibody response to clear the virus, we discovered that IgA also plays a key role in neutralizing it in most people.”

As neutralizing antibodies are an indicator of immune response and protection against viral infections, this discovery is critical in the context of vaccine development.

University of Melbourne’s Dr. Amy Chung is a Laboratory Head the Doherty Institute and one of the senior authors of the paper.

“This research opens the door to new approaches for the development of future vaccines against SARS-CoV-2,” Dr. Chung said.

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