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Creating a needle-free COVID-19 vaccine


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Vaccines are mostly synonymous with needles, an efficient and effective way to provide immunity to myriad infections. As COVID-19 vaccination efforts roll out across the U.S. and the world, some experts believe that a vaccine administered through the nose could be just as effective and easier to administer. A cover story in
Chemical & Engineering News, the weekly newsmagazine of the American Chemical Society, explains the pros and cons of nasal vaccines.
SARS-CoV-2, the virus that causes COVID-19, often enters the body through the nose when a person inhales. From there it encounters a network of mucosal membranes that form the body s first line of immune defense, writes Associate Editor Ryan Cross. The cells of mucus membranes create a special type of antibody, which experts say can provide both mucosal and systemic immunity when triggered by a vaccine that is sprayed into the nasal cavity. In contrast, injectable vaccines only trigger a systemic immune respo ....

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How to Study Virus Variants in the Lab?


by Jayashree on 
June 9, 2021 at 10:07 PM
Viruses are intriguing biological entities that are borderline between inanimate and living matter but tracing their origin remains as an important challenge for evolutionary biology.
Even knowing COVID-19 virus variants in the laboratory before they emerge in nature can prevent major public health challenging pandemic conditions.
New technology developed by the University of Queensland, QIMR Berghofer Medical Research Institute, Peter Doherty Institute for Infection and Immunity, Monash University, and Queensland Health reported in journal
Nature Communications to manipulate viruses synthetically allowing rapid analysis and mapping of new potential virus variants will be ideal to use during a global pandemic such as COVID-19. ....

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