SARS-CoV-2 (severe acute respiratory syndrome coronavirus 2)

Coronavirus Disease 2019 (COVID-19)

Coronavirus particle

Coronavirus disease 2019 (COVID-19) is an infectious disease caused by severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2).

Coronavirus around the world, also known as:

  • 2019-nCoV acute respiratory disease;
  • Novel coronavirus pneumonia;
  • Wuhan pneumonia;
  • Wuhan coronavirus;
  • Misspelled like corona virus, corona-virus, corono virus, coronovirus or coronavairus.

Coronavirus research



There is no available vaccine, but coronavirus research into developing a vaccine has been undertaken by various agencies. There are three vaccination strategies being investigated:

  • First, researchers aim to build a whole virus vaccine. The use of such a virus (inactive or dead) aims to elicit a prompt immune response of the human body to a new infection with COVID-19.
  • A second strategy, subunit vaccines, aims to create a vaccine that sensitises the immune system to certain subunits of the virus. In the case of SARS-CoV-2, such research focuses on the S-spike protein that helps the virus intrude the ACE2 enzyme receptor.
  • A third strategy is that of the nucleic acid vaccines (DNA or RNA vaccines, a novel technique for creating a vaccination).

Scientists Press WHO on Airborne Transmission

N95 mask

Evidence is mounting that tiny, infectious COVID-19 droplets linger in the air longer than once thought, according to a group of scientists urging the WHO to update its guidance, The Washington Post reports.

200+ scientists from 30 countries collaborated on an open letter—set to be published in the journal Clinical Infectious Disease—directed at the agency, which has maintained that SARS-CoV-2 is spread primarily by large respiratory droplets that quickly sink to the floor.

Scientists discover unique mutation of new coronavirus

SARS-CoV-2 mutation

Researchers have identified a mutation in the genetic code of SARS-CoV-2 that mirrors changes scientists saw in the 2003 SARS outbreak.

SARS-CoV-2 is the virus that causes the illness COVID-19. In the mutation, 81 letters in the virus’s genome had been deleted.

Viral mutations are a normal part of a virus’s evolution and can alter the severity of the disease they cause.

The mysterious disappearance of the first SARS virus, and why we need a vaccine for the current one but didn’t for the other

anti-SARS outfits

Some people question why the current coronavirus has brought the world to standstill while a previous deadly coronavirus, SARS, did not.

Others have questioned why a vaccine is so urgently needed now to stop the spread of the current coronavirus when a vaccine was never developed for SARS.

I study viruses and am so fascinated by their complexity that I have written a book about them. The tale of SARS and its new cousin that causes COVID-19, SARS-CoV-2, shows just how unpredictable viruses can be, particularly when they jump from animals to humans. Understanding emerging, infectious diseases needs to be a priority. SARS, which killed about one in 10 infected people, turned out to be highly lethal but ultimately, and somewhat mysteriously, disappeared.

What does survival of the fittest mean in the coronavirus pandemic? Look to the immune system

Charles Darwin

Charles Darwin popularized the concept of survival of the fittest as a mechanism underlying the natural selection that drives the evolution of life. Organisms with genes better suited to the environment are selected for survival and pass them to the next generation.

Thus, when a new infection that the world has never seen before erupts, the process of natural selection starts all over again.

In the context of the coronavirus pandemic, who is the "fittest"?

Vaccine Hesitancy Post-COVID-19: Will Our Memory Fade or Last?

A child receiving a vaccine

Full-scale efforts are underway to develop a vaccine free us from COVID-19’s deadly grip. But even if they succeed (and that’s no guarantee), the question regrettably must be asked: Will people take it?

Given the severity of the current crisis, taking countless lives and sending our socioeconomic systems to the brink of collapse, it seems unimaginable that anyone would reject a Coronavirus vaccine. Yet, over the last 2 decades, vaccine hesitancy has risen so substantially that the WHO now considers it a major threat to global health.

Why are necropsies not performed in the Covid-19 pandemic?

Prof. Dr. V. Astarastoae

The COVID-19 medical crisis we are going through has brought us into situations we have never encountered before, from the phenomenon of social distancing to the lack of any articulated solution plan. Prof. Dr. Vasile Astarastoae made several analyzes in the last weeks of the medical oddities from COVID-19 crisis. Today it raises a new question: why are necropsies not performed on the bodies of those who died because of SARS-CoV-2 virus. This is all the more strange as it is the first time that this medical research tool is not used.

The COVID-19 crisis is certainly a phenomenon that humanity has never encountered. Isolating people in homes, but also the lack of a solution plan, other than driving with masks on their faces and the possibility of being stuck at any time, make this medical problem even more complicated.

Bat survey identifies six new coronaviruses

Bats flying

Scientists have discovered six previously unknown coronaviruses in bats. The animals were in regions of Myanmar where humans come into close contact with wildlife as a result of agriculture, deforestation, and other ecological disruption.

Wild bats are generally beneficial for people living in many areas around the world. They pollinate crops, control pest insects, and produce guano, which farmers collect from caves to use as fertilizer.

Many experts think that these mammals were the original hosts of several viruses that pose a significant threat to human health.

SARS-CoV-2 may affect more children than scientists initially thought


Researchers have estimated that the number of children in the United States who spent time in a hospital with COVID-19 is likely higher than officials had previously thought. And the projected numbers of severe cases in children may overtax the health system, they warn.

According to a study paper newly published in the Journal of Public Health Management & Practice, officials may have been underestimating the impact of SARS-CoV-2 on children.


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