Coronavirus: We Need To Stop Factory Farming As Well As Wet Markets


3 Minutes Read

Factory farming poses threats to human health, as well as causing severe animal suffering (Photo: Adobe. Do not use without permission) - Media Credit:

Finally, the right question is being asked. In the Guardian this week, an article describes how scientists are tracing the path of SARS CoV-2 from a wild animal host, but says we need to look at the part played in the outbreak by industrial food production.

Like a detective novel, the story picks apart the mystery of where this new virus came from and why it was able to jump into humans.

First off, they smash the myth that SARS CoV-2 was made in a lab, there’s no evidence for that. Quite soon after it emerged, scientists were able to sequence the virus’s genome showing that it is the product of ‘natural’ evolution – although it evolved in very unnatural circumstances as you will see…

Natural host

The virus is very similar to one found in bats, which are probably the natural host – bats are host to many viruses, usually with no symptoms, including those responsible for SARS, MERS and Ebola (which have all been transmitted to humans via civets cats, camels and primates respectively). 

It’s not clear what the intermediate host for SARS-CoV-2 was if there was one, a scaly mammal called a pangolin is thought to be the most likely candidate, providing the bridge between bats and humans that the virus used to cross.

Wet markets

Bats, pangolins, snakes, civet cats, fox cubs and all manner of unfortunate creatures, wild and domesticated, are caged and sold in ‘wet markets’ which are a breeding ground for disease. It’s quite feasible that the viral ‘spillover’ between species occurred here.

But before you line up behind Trump calling it a Chinese virus, be aware.

“We can blame the object – the virus, the cultural practice – but causality extends out into the relationships between people and ecology,” says evolutionary biologist Rob Wallace of the Agroecology and Rural Economics Research Corps in St Paul, Minnesota.

Warnings not heard

Scientists have been warning us about this for years. 

As industrialized farming expanded in China, small-scale farmers moved over to the wildlife market and were geographically pushed too into remote areas inhabited by, you guessed it, bats. 

We’ve seen the same thing with people catching Ebola from bushmeat (chimpanzees).

Bird flu

It’s not just a problem in far-flung countries – take flu, for example: “There is clearly a link between the emergence of highly pathogenic avian influenza viruses and intensified poultry production systems,” says spatial epidemiologist Marius Gilbert of the Université Libre de Bruxelles in Belgium.

Flu viruses are constantly mutating, which is why the vaccine has to be updated each year.

When a virus is given the opportunity to spread unhindered, among large numbers of birds packed into filthy sheds, crowded and stressed, it practically has a free run at becoming something entirely new, and that’s when dangerous highly pathogenic strains begin to emerge.

Mortality rate could be much worse

The coronavirus outbreak is bad, but it could be much worse. Some highly pathogenic flu strains have a mortality rate of 60 percent. (COVID-19 is thought to be around one percent). 

At the moment, these highly pathogenic strains do not spread easily among humans, but that could all change.

Swine flu

There are other threats too, remember swine flu? It’s still around and some strains have become more virulent.

Our relationship with animals can no longer be just focused on exploitation, the way meat is produced is now considered to be a global threat. 

It’s not just a case of banning wet markets, although that can’t come soon enough. We need to stop factory farming too.

As Rob Wallace says: “Chicken isn’t cheap if it costs a million lives.” 

This article was originally published by Viva!

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