Russian President Vladimir Putin announced that his country had approved a second vaccine for Covid-19, while new information was revealed about the virus, including its shape and composition, and the effect of moisture on it, as a Japanese supercomputer showed that humidity can limit the spread of the Corona virus.

We start with Russia, where Putin said during a government meeting, reported by state television today, Wednesday, that his country had given regulatory approval for a second vaccine for the emerging corona virus.

Putin congratulated the scientists on approval of the new vaccine, developed by the Victor Institute in Siberia and completed the early stages of human trials last month.

"We must increase the production of the first and second vaccines," he said in statements broadcast on state television.

"We will continue to cooperate with our foreign partners and we will promote our vaccine abroad," he added.

In August, Russia became the first country to give regulatory approval for a vaccine for Covid-19, and it took this step without conducting large-scale trials, which raised the concerns of some scientific circles around the world.

The emerging corona virus has its scientific name SARS-Cove 2 (cell magazine)

Corona virus shape

We move to a study that revealed the shape of the Corona virus in unprecedented detail before, conducted by scientists from China and published in the journal Cell.

And scientists were able to know accurate details about the emerging corona virus - its scientific name "SARS Cove 2" - that causes "Covid-19".

They discovered how he uses some of his proteins to slip into cells and how closely twisted genes dominate our biochemistry.

Scientists notice how some viral proteins throw the keys in our cell factories (cell magazine)

According to a report in the New York Times, scientists have noticed how some viral proteins throw the keys into our cell factories, while others are building nurseries to create new viruses.

According to the researchers, the emerging corona virus encodes at least 29 proteins in the RNA genome, of which 4 are structural proteins, which are the spike protein (S), the membrane (M), and the envelope (E, The nucleocapsid.

The researchers add that corona viruses have the largest genome among all RNA viruses.

Humidity can limit the spread of Corona virus (cell magazine)

Moisture is Corona's enemy

We now move to Japan, where a supercomputer has shown that humidity can have a significant effect on limiting the spread of virus particles, indicating an increased risk of contracting the Coronavirus in dry indoor places during the winter.

The results indicate that the use of humidity control devices may help reduce infection during times when windows cannot be opened for ventilation, according to a study published on Tuesday by the Riken Research Institute and the University of Kobe, and reported by Reuters.

The researchers used a supercomputer (FUJACO) to simulate the emission and flow of virus-like particles from those infected in a variety of enclosed spaces.

The simulations showed that air humidity of less than 30% resulted in more than double the amount of volatile particles compared to humidity levels of 60% or more.

The study also indicated that face shields are not as effective as masks in preventing the spread of spray.

There is a growing consensus among health experts that the Corona virus can spread through the air (cell magazine)

consensus

There is a growing consensus among health experts that the Corona virus can spread through the air.

The US Centers for Disease Control and Prevention revised its guidelines this month to say the virus could remain in the air for hours.

The research team at the Rakeen Institute was used by the Fugaco supercomputer to simulate infection conditions in trains, workplaces and classrooms.

The simulations showed that opening windows on passenger trains could increase ventilation by 2 to 3 times, reducing the concentration of surrounding microbes.