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Letter from scientists: Investigate the origins of COVID-19

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More investigation is needed to determine the origin of the COVID-19 pandemic, say Jesse Bloom, Alina Chan, Ralph Baric, David Relman and colleagues in this Letter. Theories of accidental release from a lab and zoonotic spillover both remain viable, they say. Knowing how COVID-19 emerged is critical for informing global strategies to mitigate the risk of future outbreaks. The authors highlight a joint China-World Health Organization (WHO) report into the origins of SARS-CoV-2, some results of which were released in November 2020. WHO Director-General Tedros Ghebreyesus commented that the report s consideration of evidence supporting a laboratory accident was insufficient, they note. As scientists with relevant expertise, we agree with the WHO director-general, the United States and 13 other countries, and the European Union that greater clarity about the origins of this pandemic is necessary and feasible to achieve, they say. They call for an investigation tha ....

United States , Alina Chan , Tedros Ghebreyesus , David Relman , European Union , World Health Organization , Jesse Bloom , Ralph Baric , China World Health Organization , General Tedros Ghebreyesus , Medicine Health , ஒன்றுபட்டது மாநிலங்களில் , அலினா சான் , ஐரோப்பிய தொழிற்சங்கம் , உலகம் ஆரோக்கியம் ஆர்கநைஸேஶந் , ஜெஸ்ஸி பூக்கும் , ரால்ப் பாரிக் , சீனா உலகம் ஆரோக்கியம் ஆர்கநைஸேஶந் ,

Call for "paradigm shift" to fight airborne spread of COVID-19 indoors

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VIDEO: QUT air-quality expert Distinguished Professor Lidia Morawska is leading an international call for a paradigm shift in combating airborne pathogens such as COVID-19.
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Credit: QUT
QUT air-quality expert Distinguished Professor Lidia Morawska is leading an international call for a paradigm shift in combating airborne pathogens such as COVID-19, demanding universal recognition that infections can be prevented by improving indoor ventilation systems.
Professor Morawska led a group of almost 40 researchers from 14 countries in a call published in
Science for a shift in standards in ventilation requirements equal in scale to the transformation in the 1800s when cities started organising clean water supplies and centralised sewage systems. ....

Lidia Morawska , International Laboratory For Air Quality , World Health Organisation , Distinguished Professor Lidia Morawska , Air Quality , Professor Morawska , Address Airborne Transmission , Medicine Health , Immunology Allergies Asthma , Infectious Emerging Diseases , Public Health , Science Health And The Law , Civil Engineering , சர்வதேச ஆய்வகம் க்கு அேக தரம் , உலகம் ஆரோக்கியம் ஆர்கநைஸேஶந் , அேக தரம் ,

New ebolavirus vaccine design seeks to drive stronger antibody defense

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LA JOLLA, CA Scientists at Scripps Research have unveiled a new Ebola virus vaccine design, which they say has several advantages over standard vaccine approaches for Ebola and related viruses that continue to threaten global health.
In the new design, described in a paper in
Nature Communications, copies of the Ebola virus outer spike protein, known as the glycoprotein, are tethered to the surface of a spherical carrier particle. The resulting structure resembles the spherical appearance of common RNA viruses that infect humans and is starkly different from the snake-like shape of the Ebola virus.
The scientists say the design is intended to stimulate a better protective immune response than standard vaccine approaches, which often expose the immune system to individual glycoproteins rather than realistic-looking virus particles. ....

Tanwee Alkutkar , Andrew Ward , Cindy Sou , Xiaohe Lin , Jiang Zhu , Ian Wilson , Gabriel Ozorowski , Robyn Stanfield , Ezra Kosviner , Anshul Chaudhary , Timothy Ngo , Scripps Research , Nature Communications , National Institutes Of Health , Computational Biology At Scripps Research , Drug Administration , Department Of Integrative Structural , Uvax Bio , Integrative Structural , Computational Biology , West Africa , Hansen Professor , Structural Biology , Sonu Kumar , National Institutes , Medicine Health ,

Low risk of infection in babies born to mothers with COVID-19

Researchers at Karolinska Institutet and the Public Health Agency of Sweden have studied newborn babies whose mothers tested positive for SARS-CoV-2 during pregnancy or childbirth. The results show that although babies born of test-positive mothers are more likely to be born early, extremely few were infected with COVID-19. The study, which is published in the esteemed journal JAMA, supports the Swedish recommendation not to separate mother and baby after delivery. ....

Karolinska Institutet , Bernice Aronsson , Emma Bystr , Mikael Norman , Olof Stephansson , Verena Sengpiel , Mia Ahlberg , Jonasf Ludvigsson , Public Health Agency Of Sweden , Association Of Maternal , National Quality Register For Neonatal Care , Department Of Clinical Science , National Quality Register For Pregnancy , Swedish Society Of Medicine , Public Health Agency , Clinical Science , National Quality Register , Neonatal Care , Communicable Diseases Register , Communicable Diseases , Swedish Society , Region Stockholm , Childhood Foundation , Swedish Order , Co Author Jonas , Pregnancy With Neonatal ,

A new way of rapidly counting and identifying viruses

A Lancaster University professor has introduced a new concept for rapidly analysing for the presence of a virus from colds to coronaviruses. However, although the concept can identify that someone has a type of coronavirus for example, it would not be able to determine the type of coronavirus, or variants. Additional tests would still be required to find out the specific virus someone was infected with. ....

Claude Degueldre , Lancaster University Department Of Engineering , A Lancaster University , Lancaster University , Professor Claude Degueldre , Chemistry Physics Materials Sciences , Infectious Emerging Diseases , Public Health , Technology Engineering Computer Science , Biomedical Environmental Chemical Engineering , லான்காஸ்டர் பல்கலைக்கழகம் துறை ஆஃப் பொறியியல் , லான்காஸ்டர் பல்கலைக்கழகம் ,