Tag Archives: SARS-CoV-2

Here’s what happens when two very different respiratory viruses infect the same cell – new study

Influenza virus particles. Kateryna Kon/Shutterstock Connor Bamford, Queen’s University Belfast Right now, there’s just one virus on everyone’s minds: SARS-CoV-2, the virus that causes COVID-19. But humanity is plagued by many respiratory viruses, such as influenza A (IAV) and respiratory syncytial viruses (RSV), which cause hundreds of thousands of deaths every year. Most of these viruses – apart from influenza …

Read More »

Covid-19 : que sait-on du variant Lambda, désormais présent dans 29 pays ?

Tara Hurst, Birmingham City University Le Pérou est de loin le pays qui compte le plus grand nombre de décès dus au Covid-19 par habitant. 596 décès sur 100 000 habitants sont dus à la maladie. Ce bilan est presque deux fois plus élevé que celui du second pays le plus touché par la pandémie, la Hongrie, où sont dénombrés 307 décès pour 100 000 habitants. Plusieurs …

Read More »

Covid-19 : que sait-on du variant Delta (et des autres) ?

Samuel Alizon, Institut de recherche pour le développement (IRD) and Mircea T. Sofonea, Université de Montpellier Comme tous les êtres vivants, le virus SARS-CoV-2 évolue. Au cours de chaque infection sont produits des milliards de nouvelles particules virales. Parmi ces nouveaux virus, certains sont porteurs de mutations. Ce processus d’évolution et cette génération de mutants ont été étudiés en détail. …

Read More »

Covid-19: why the lab leak theory must be formally investigated

Virginie Courtier, Université de Paris and Etienne Decroly, Aix-Marseille Université (AMU) A year and a half into the pandemic, we still do not know exactly where the SARS-CoV-2 virus, which causes Covid-19, came from. The prevailing view so far has been that the virus “spilled over” from bats into humans. But there are increasing calls to investigate the possibility that …

Read More »

The coronavirus genome is like a shipping label that lets epidemiologists track where it’s been

The steady rate of genetic changes lets researchers recreate how a virus has travelled. nextstrain.org, CC BY Bert Ely, University of South Carolina and Taylor Carter, University of South Carolina Following the coronavirus’s spread through the population – and anticipating its next move – is an important part of the public health response to the new disease, especially since containment …

Read More »

The next pandemic is already happening – targeted disease surveillance can help prevent it

Sustained surveillance for disease outbreaks at global hot spots may be the key to preventing the next pandemic. MR.Cole_Photographer/Getty Images Maureen Miller, Columbia University As more and more people around the world are getting vaccinated, one can almost hear the collective sigh of relief. But the next pandemic threat is likely already making its way through the population right now. …

Read More »

Pilgrimage in a pandemic: lessons from Mecca on containing COVID-19

Muslim worshippers perform the evening Tarawih prayer during the fasting month of Ramadan around the Kaaba in the Grand Mosque complex in the holy city of Mecca, on April 13, 2021. AFP via Getty Images Ahmed Kalebi, University of Nairobi As a Muslim, at least once a year I go on pilgrimage to Mecca, Islam’s holiest city, located in Saudi …

Read More »