What has 'created' the corona virus?

There are many links between climate change and infectious diseases. For example, rising temperatures make our natural immune system less effective.

Compile the article expressing the views of the writer Justin Worland Time newspaper on the relationship between corona virus and climate change issues today.

The emergence of a virus known as the SARS-CoV-2 has dominated the news lately. As of April 1, worldwide there were more than 844,749 cases, 41,443 deaths from the Covid-19 pandemic.

However, the danger of corona virus really does not surprise scientists who study infectious diseases. This is just one of many germs that can cause an emergency situation.

There is no evidence that climate change is the reason for the transfer of SARS-CoV-2 from animals to humans, or whether global warming has contributed to its spread. However, it is quite clear that climate change is leading to an increase in diseases caused by viruses and other pathogens in the future.

SARS-CoV-2 is making the whole world tumble.(Photo: Axios).

Climate change increases disease

For decades, scientists knew climate change would change the way the disease spreads, but with current global warming agents, this hypothesis is still being explored.

There are many links between climate change and infectious diseases , but we will focus only on a new knowledge. Rising temperatures are making our natural immune systems less effective.

The human body is an amazingly effective anti-disease engine. The adaptation process has come a long way. Warm body temperature can eliminate all unwanted intrusion on its own.

When a pathogen enters the body, we have a fever, which warms the body to fight disease. The fever stimulates the immune system, the heat creates an ideal environment that makes it very difficult for pathogens to survive.

But as the planet warms, pathogens that come into contact with the warmer temperatures help them better adapt and equip themselves to survive at high temperatures, particularly within the human body.

Pathogens that survive, reproduce, and better adapt to high temperatures include those that exist in our own bodies. As a result, one of the most important human defense mechanisms has been reduced in performance.

Unlike people, bat's body temperature is quite flexible.(Photo: Time).

This is not a straightforward theory.

In 2019, Arturo Casadevall, a professor of microbiology and immunology at Bloomberg School of Public Health at Johns Hopkins University, and his colleagues cited how 'Candida auris' (a fungus that invades the bloodstream, leading to many diseases) ) appeared simultaneously in patients in 3 different isolated areas: South Asia, Venezuela and South Africa, between 2012 and 2015.

In a globalized world, diseases spread by carriers move from place to place. But in this case, the researchers conclude that similar climatic conditions in the three areas could be the cause of the simultaneous development of the disease.

It's hard to say how this effect can spread, there's no reason to think it will be limited to fungi like Candida auris.

Human immune system gradually weakened?

The current strains of corona virus are different from Candida for many reasons, but its intermediate host - the bat - provides an interesting example of how temperature affects the spread of an infectious disease.

Mechanically similar to humans, bats are mammals that maintain warm body temperatures that help protect them from disease. But while our body temperature is around 37 degrees Celsius, a few degrees above illness, the bat's temperature often rises to more than 40.5 degrees Celsius.

This means they can carry multiple pathogens on people but not cause disease. In the near future, as global temperatures rise, bats will continue to be protected by body heat, while the pathogens they carry are likely to cause more harm to us.

For decades, scientists have realized that climate change will have a range of negative effects on public health. For example, a 1992 report by the National Academy of Sciences showed a number of ways that climate change could lead to the spread of infectious diseases.

They also said that the lack of research resources on the impact of climate change on disease is very worrying.

Humans certainly have to trade many things as climate change increases.(Photo: The Trumpet).

Four years later, an article cited in the Journal of the American Medical Association warned: Climate change could increase the spread of everything from malnutrition to malaria, thereby calling for coordination. a case study from doctors, climatologists and the social sciences.

In the same year, the World Health Organization WHO published a 300-page book examining a range of climate and public health links, noting that the link is ' complex and multifaceted. Element '.

Although our understanding is now more complete, there are still many things that scientists do not know yet.

As the Arctic ice melts, what pathogens buried for millennia have been released into the atmosphere? Can we stop it? What do people have to trade in this harsh battle?

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