When does the emerging corona virus become like a cold?

Do we succeed in controlling it and lose its ferocity?

What is the degree of death of Covid-19 disease and what is the relationship between it and blood clotting?

And why are children less likely to contract corona infection than adults?

These and other questions are answered here in this comprehensive report.

The emerging corona virus has its scientific name "SARS Cove 2", which causes Covid-19 disease.

We start in Italy, where Giuseppe Remuzzi, from the Mario Negri Institute for Drug Research in Milan, told the Italian newspaper Corriere della Sera that the Coronavirus vaccine would not make the disease completely disappear.

When asked whether the vaccine will eliminate the virus, Remuzzi said, "No, and it is better to say that clearly. All vaccines are in preparation, starting with Pfizer, will not curb the Corona virus, to put it mildly, they will be more like influenza vaccines than polio vaccines." It will prevent the disease, but it will not make it disappear. "

He also said that the arrival of vaccines and other public health measures would lead to Covid-19 disease becoming a common cold.

However, Remuzzi noted that there are so many variables and that the future course of the epidemic is impossible to predict.

And the arrival of the vaccination for Covid-19 will help to avoid the largest possible number of deaths - according to Remuzzi - and prevent the transmission of the virus from one person to another, but he said that wearing a mask and other measures are still important.

"Today, our vaccine is the muzzle, when a real vaccine arrives, we will be stronger. That is precisely why it is important now more than ever not to give up the precautions," he added.

Covid-19 ... is deadly, but to what extent?

The death rate due to infection with the Coronavirus is considered a major factor that will help understand the scale of the epidemic, and writers Gwendolyn dos Santos and Caroline Turb said, in a report published by the French newspaper "Le Point", that since the outbreak of the epidemic, the rate has been touched upon. Deaths due to corona virus infection.

The question is, "Among those infected with the virus, how many people die?"

The answer is less than 1%.

According to a team of researchers from Imperial College London who reviewed no fewer than 175 published studies around the world, they concluded that the number of deaths due to infection equals 1% of the total number of HIV carriers.

Scientists also estimated the death rate after corona infection, in high-income countries such as France, at about 1.15%, while it was estimated in low-income countries at about 0.23%.

What is the relationship between Covid-19 and blood clotting?

"We have asked ourselves this question since March," said Stephane Zweli, professor of vascular medicine at the Regional and University Medical Center in Nancy, France. "When the virus reached the West, something strange was immediately noticed, as countless patients were exposed to blood clotting." ".

According to a report in the French newspaper Le Figaro by writer Tristan V.

The clotting leads to a blood clot that blocks the veins or arteries, and it may cause a stroke, heart attack, or phlebitis in the feet.

And when a blood clot blocks an artery in the lungs, a so-called pulmonary embolism occurs, which causes the death of the first Covid-19 patient in France.

Antiphospholipid antibodies

Nicolas Gendron, a doctor in the hematology department of the European Georges Pompidou Hospital in Paris, asserts that "the question that must be asked is whether this condition occurs in patients who are primarily prone to developing blood clotting (such as those suffering from obesity, cancer or a lack of a clotting protein, and what Or is the disease (Covid-19) responsible for the occurrence of this clotting?

Although a large proportion of people with severe forms of corona are more likely than others to develop blood clotting, Jendron asserts that those at high risk of clotting after infection with Covid-19 "are not necessarily the most susceptible to blood clotting in normal times."

Zoelli returns to say that Covid-19 patients have more intense blood, and this is related, according to his opinion, to a number of reasons that have not yet been clarified, and for this reason they are often prescribed anticoagulant treatments as a preventive measure.

Among the possibilities that researchers are focusing on to explain "hypercoagulation" in people with Covid-19 is the presence of antiphospholipid antibodies that cause "antiphospholipid antibodies (called APL), which is the main cause of blood clots in young people without any disease." .

Zoelli believes that this hypothesis needs more scrutiny, as it has been known for a long time - according to him - that many infections can lead to the formation of antibodies to phospholipids without this increasing the risk of developing blood clots.

"Only if these bodies continue to be produced for a long time can we say that they may lead to blood clots," he continues.

Catherine DeVries, a distinguished expert at Ghent University in Belgium, confirmed that "there are no antiphospholipid antibodies in patients' blood after 3 months of infection."

Endothelium

Another assumption that researchers are studying is related to the endothelium, which lines blood vessels.

"The virus appears to be attacking the cells that make up the lining of blood vessels," forming an inflammatory platform favorable to blood clotting, he says.

Researchers also suspect that some white blood cells may play a role in the blood clotting process, as these cells are one of the means that the immune system uses to fight the virus.

Children's puzzle

"It was a big mystery: Why are children less likely to be infected with the emerging coronavirus than adults?" Writes Gina Colata in The New York Times.

Adding that it is possible that many children already have antibodies to other corona viruses, according to researchers at the Francis Crick Institute in London.

About 1 in 5 of the common cold that affects children is caused by viruses in this family, and the antibodies to these viruses may also stop the emerging corona virus "SARS Cove 2".

In a study published Friday in the journal Science, the research group led by George Cassiotis, who heads the institute's viral immunology laboratory, reported that only 5% of adults have these antibodies on average, but they are present in 43% of children.