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How do vaccines cause immunity in people and why doesn’t it always work?

Nov 14 @ 12:00 pm 1:00 pm UTC+0

Presented by: Dr. Weiping Cao and Dr. Zachary Ende

When germs (e.g., bacteria or viruses) invade the body, they cause illness. Vaccines can prevent this from happening. Vaccines can be made from attenuated or inactivated germs or part of the germ structures, which help develop immunity by imitating an infection without causing disease. Once the imitation infection goes away, the body is left with specific memory cells which will remember how to fight the specific virus in the future. However, flu viruses can change over time and the human body sometimes fails to develop sufficient immunity. Under these circumstances, you can still fall sick despite being vaccinated against the virus. The development of improved vaccines including universal influenza vaccines that could provide protection against all subtypes of influenza viruses is a global effort.

About the Speakers:
Dr. Weiping Cao, MBBS, PhD, is a trained physician and immunologist. Dr. Cao’s research focuses on understanding the host immune response to influenza virus infection and vaccination with the goal of developing novel vaccine adjuvants and antimicrobial strategies to provide enhanced protection against virus infection. Dr. Cao has published over 40 peer-reviewed papers and was a speaker at several prestigious conferences.

Zachary Ende, PhD, is a viral immunologist who currently studies vaccine induced immune responses to the influenza virus, focusing on antibodies. He previously studied the human immunodeficiency virus (HIV) from 2008 to 2018 and is an author on >20 peer-reviewed scientific articles.

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