Popularization of research advances on COVID-19
What type of immunity is the most effective?
Acquiring effective immunity is a key element in our fight against the virus. Good immunity gives robust and durable protection. However, there are two types of adaptive immunity against SARS-CoV-2: the first is natural immunity, acquired when infection with the virus takes place, and the other is vaccinal immunity. Their effect may even be cumulative. […]
What after-effects one year after hospitalisation?
The COVID-19 pandemic remains a major problem for public health. It has infected more than 200 million people and there have been more than 4,3 million deaths. Post SARS-CoV-2 infection after-effects have already been reported, and this is becoming a matter for concern in view of the large number of cases. Until recently, 2 studies […]
Challenges specific to the most advanced African countries
By March 2021, some African countries had suffered two waves of infection with a total of more than 2,9 million people affected and more than 74 000 deaths. As is the case in other parts of the world, the effects of the pandemic are extremely variable from one country to another. These variations may be […]
Micro-droplets could be the most significant form of transmission
For a century now, scientists have believed that the main means of respiratory virus transmission is through droplets released by coughing or sneezing, which are deposited on the mucus membranes (eyes, nose or mouth) of a potential new host, or on a surface via which they can infect. These droplets can travel more than 1 […]
CD4 T lymphocytes from endemic coronaviruses could activate
SARS-CoV-2 has numerous similarities with endemic human coronaviruses (HCoV), which cause common infections. Several studies suggest that anti-HCoV immunity exists, capable of combatting SARS-CoV-2, although its role in the physiopathology of COVID-19 is unclear. This cross-immunity is hotly debated, but in the light of its importance for vaccination, it is crucial to better understand its […]
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