The origin of the SARS-CoV-2 virus, accountable for the Covid-19 illness, remains to be the topic of analysis by scientists around the globe. Epidemiologist and Director of the Institute for World Well being and Rising Pathogens at Icahn Mount Sinai College of Drugs in New York, Adolfo García Sastre, has addressed this matter in an interview this week to the Tv of the College of Burgos.

“We have no idea the precise particulars, however what has occurred with the emergence of this virus is kind of clear. It’s a virus that belongs to a household of associated viruses, there are many sorts of strains in bats, particularly. In some unspecified time in the future, this virus that was in a bat was capable of infect an individualMaybe immediately, maybe by an middleman animal, that isn’t clear, “he mentioned.

¿When the primary transmission occurred of the bat virus to an individual? “That’s nonetheless not clear,” mentioned García Sastre, who doesn’t consider that it may be identified “with whole safety.

What has been confirmed is that this an infection “occurred someplace close to Wuhan, absolutely, in China. Possibly the primary transmission occurred in Wuhan, possibly the primary transmission occurred in a close-by city after which an contaminated individual took it to Wuhan. “

The Spanish epidemiologist has additionally referred to state of affairs that unfold the illness: “It began to unfold from individual to individual in Wuhan, largely associated to instances in a market. There have been the primary instances, the place the bat virus jumped at folks, or it could merely be that it was a web site the place it was amplified, an individual who was contaminated arrived and started to contaminate market workers, in such a approach that later individuals who got here to the market started to contaminate one another, that’s what we have no idea. “

Then again, García Sastre has defended that “not all bat viruses are able to doing this. Moreover, most bat viruses much like this virus should not able to infecting people or, in the event that they do infect, they don’t seem to be able to being transmitted from human to human, however there’s a very small proportion of viruses that may and if it occurs {that a} human is contaminated with one in every of these viruses is when the issue begins “.

On this sense, the epidemiologist maintains that “it’s similar to what occurs with flu pandemics, wherein case it’s not bats that trigger it, however slightly wild birds which have strains of influenza that don’t usually infect people, however a few of them might occur to have higher situations to start out transmitting from people to people , and it could possibly occur that it’s a direct an infection of a chicken with a human, or by an intermediate animal that may be a pig or a home chicken, which in the long run additionally reaches a human and begins to be transmitted “.

As García Sastre has defined, “they’re zoonotic episodes, they don’t seem to be unknown inside scienceThey happen very occasionally, however they do happen with some frequency each sure variety of years. ”

The knowledgeable has predicted that “We are going to proceed to have any such pandemic. Coronaviruses appear to be much less frequent than flu viruses, maybe as a result of influenza viruses have a larger propensity to be transmittable in people than coronaviruses, however we are able to have one other coronavirus pandemic. It might not occur for 200 years, however it’s one thing that may occur once more, “he mentioned.