Health News

Study on SARS-CoV-2 Delta breakthrough infections shows twice the risk as Alpha

A recent study conducted by Portuguese scientists has claimed that mRNA-based coronavirus disease 2019 (COVID-19) vaccines are less effective against the delta variant of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2). Moreover, in breakthrough infections by delta variant, vaccines are less effective in reducing viral loads. The study is currently available on the medRxiv* preprint […]

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Virus-like particles reveal unexpected mechanism for increased fitness and spread of SARS-CoV-2

Researchers in the United States have developed a new model for testing mutations in the four structural proteins of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) – the agent that causes coronavirus disease 2019 (COVID-19). Testing of the proteins for their effects on viral assembly, packaging and host cell entry provided a previously unanticipated explanation […]

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Study: Immune responses may develop against other proteins produced by SARS-CoV-2

All coronaviruses produce four primary structural proteins and multiple nonstructural proteins. However, the majority of antibody-based SARS-CoV-2 research has focused on the spike and nucleocapsid proteins. A study published in PLOS Biology by Anna Heffron, Irene Ong and colleagues at the University of Wisconsin-Madison, USA, suggests that immune responses may develop against other proteins produced […]

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Study compares Pfizer and Moderna mRNA vaccine-elicited response to SARS-CoV-2 variants

The ongoing coronavirus disease 2019 (COVID-19) pandemic is caused by severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), a highly contagious RNA virus. Scientists across the world have been working at record speed to develop vaccines such as Pfizer’s BNT162b2 vaccine and Moderna’s mRNA-1273 vaccine. Various regulatory bodies, including the U.S. Food and Drug Administration (FDA), […]

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New, portable saliva screening test detects SARS-CoV-2 in five-minutes

International research led by Monash University and the Peter Doherty Institute for Infection and Immunity has achieved a proof of concept for a new, fast, portable saliva screening test that uses an infrared light technology to confirm infection with SARS-CoV-2. The research is published today in Angewandte Chemie. Professor Bayden Wood from the Monash University […]