Covid-19: children more at risk of reinfection?
What if children were more at risk than adults of being reinfected with SARS-CoV-2? This is suggested by a study ...
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Serious forms of Covid: a process of programmed cell death observed in 60% of cases
In a majority of severe Covid cases, there is a decrease in the normal level of lymphocytes in the blood. ...
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Covid-19: vaccines would protect against severe forms for at least nine months
Protection against Covid-19 infection declines over time, but the various vaccines would continue to protect against severe forms of the ...
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Covid-19: what is the “super-immunity” developed by certain vaccinated people?
People vaccinated against Covid-19 and subsequently infected would have developed “super-immunity” against the virus. Explanations. THE ESSENTIAL In France, more ...
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Omicron: 5.4 times more likely to be reinfected than with the Delta variant
There would be more risk of being reinfected by the Omicron variant than by the Delta, even if one is ...
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A new antibody against SARS-CoV-2 has been discovered
This monoclonal antibody is effective against all forms of the virus, including the Delta variant. THE ESSENTIAL Antibodies are proteins ...
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Covid-19: why first-time recipients must remain cautious
The immune system is fully armed against SARS-CoV-2 only after the second injection of anti-Covid vaccines. Here's why. THE ESSENTIAL ...
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No, excess hygiene does not lower children’s immunity
A new study sweeps away the received idea according to which cleanliness and the hunt for germs lead to deficiencies ...
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Covid-19: those accustomed to colds are more likely to have mild forms
People who often have colds would be less likely to develop a severe form of Covid-19 because their immune system ...
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Variant Delta: concern is mounting and the government is considering the compulsory vaccine
The presence and spread of the Delta variant is of concern to all countries in Europe. In France, the government ...
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mRNA vaccines: immunity could last for years
The immune response triggered by vaccines from Pfizer and Moderna would be able to fight off the virus years after ...
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How coronavirus variants create ‘super cells’ to replicate
SARS-CoV-2 is able to fuse cells to evade the immune system. THE ESSENTIAL A virus must hide to survive. When ...
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Covid-19: natural immunity would ultimately be at least a year
Natural immunity, acquired after infection with SARS-CoV-2, would last for at least a year, the same duration as that conferred ...
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Covid-19: messenger RNA vaccines provide immunity for pregnant and breastfeeding women
In pregnant and breastfeeding women, the Pfizer and Moderna mRNA vaccines trigger strong immune responses that protect them and their ...
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Covid-19: antibodies protect former patients for 8 months
According to a new study, people who have been infected with SARS-CoV-2 develop antibodies capable of detecting and neutralizing the ...
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Anti-Covid immunity would be longer in women
After being infected with Covid-19, the antibody level would be more stable and durable in women. They would thus be ...
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Covid toes: possible sign of natural immunity
Purplish lesions on the toes and feet of patients, long thought to be a symptom of Covid-19 infection, are actually ...
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Covid-19 and pollens: precautions to take… but avoid psychosis!
Even if the cold spell expected in the coming days will put a short break, the spring season marks the ...
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Covid-19: vaccinated pregnant and breastfeeding women transmit immunity to their babies
In women vaccinated against Covid-19, antibodies have been found in umbilical cord blood and breast milk. THE ESSENTIAL In the ...
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Covid-19: does the flu vaccine have a protective effect?
According to an American study, people who have received the seasonal flu vaccine are less likely to be infected with ...
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Covid-19: reinfection seems infrequent but would depend on age
At 6 months after a SARS-CoV-2 infection, the risk of a second infection is reduced by about 80% in people ...
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What could a European health passport look like?
To travel to Europe next summer, it will probably be necessary to be able to present proof that one is ...
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Covid-19: high levels of pollen in the air increase the risk of infection
During the epidemic peaks of spring 2020, the concentrations of pollen in the air corresponded to an increase in infection ...
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Sport strengthens bones and immunity
Physical activity stimulates the production of white blood cells in the bone marrow, helping to strengthen the bone and immune ...
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Immunity: what if it all happened with the first flu?
What if the first flu infection shapes our immunity against future airborne viruses, including SARS-CoV-2? This is the theory by ...
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Mild forms of covid-19: immunity would disappear two months after infection
Bad news for patients who have had a mild form of Covid-19. The amount of antibodies in the blood decreases ...
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Covid-19: a single dose of the Pfizer vaccine confers 90% immunity 3 weeks after the injection
The Israeli vaccination campaign, where 70% of people over 60 have already received a first dose, reveals that the first ...
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Covid-19: in Israel, vaccination would begin to prove its worth
In Israel, where a quarter of the population has already received the first dose, vaccines against Covid-19 would have reduced ...
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Covid-19: do you have frostbite? Your immunity is working well!
Symptoms of Covid-19, frostbite would be a sign of a very effective immunity against the virus. THE ESSENTIAL Cases of ...
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Covid-19: experts call for the prescription of vitamin D
After the publication of numerous studies pointing to the protective effect of vitamin D against severe forms of Covid-19, several ...
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