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Home > News

Fake news will make the Coronavirus outbreak worse, study shows

The researchers also investigated strategies to fight fake news.


18 February 2020
Fake News

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Efforts to stop people sharing fake news, misinformation and harmful advice on social media could save lives.

The rise of fake news could be making disease outbreaks worse – according to new research from the University of East Anglia (UEA).



Researchers focused on influenza, monkeypox and norovirus across two studies – but they say their findings could also be useful for dealing with the COVID-19 Coronavirus outbreak.

The team say that efforts to stop people sharing fake news, misinformation and harmful advice on social media could save lives.

The worry that fake news might be used to distort political processes or manipulate financial markets is well established. But less studied is the possibility that misinformation spread could harm human health, especially during the outbreak of an infectious disease.

COVID-19 expert Prof Paul Hunter and Dr Julii Brainard, both from UEA’s Norwich Medical School, set out to test the effect of sharing dangerously wrong information on human health during a disease outbreak.


Based on conspiracy theories.

Prof Hunter said: “Fake news is manufactured with no respect for accuracy, and is often based on conspiracy theories. Worryingly, research has shown that nearly 40 per cent of the British public believe at least one conspiracy theory, and even more in the US and other countries.

“When it comes to COVID-19, there has been a lot of speculation, misinformation and fake news circulating on the internet – about how the virus originated, what causes it and how it is spread.”

The researchers created theoretical simulations which took into account studies of real behaviour, how different diseases are spread, incubation periods and recovery times, and the speed and frequency of social media posting and real-life information sharing.

They also took into account how a distrust in conventional authorities is closely linked to the tendency to believe in conspiracy theories, the phenomena that people interact within ‘information bubbles’ online, and the fact that people are more likely to share false stories than correct information online.


The researchers also investigated strategies to fight fake news – such as drowning bad information with good information and ‘immunizing’ people against bad information though better education.

No previous studies.

Dr Julii Brainard said: “No previous studies have looked in such detail at how the spread of misinformation affects the spread of disease.

“We found that misinformation during epidemics of infectious disease could make those outbreaks more severe.

“We tested strategies to reduce misinformation. In our first study, focusing on the flu, monkeypox and norovirus, we found that reducing the amount of harmful advice being circulated by just 10 per cent – from 50 percent to 40 per cent – mitigated the influence of bad advice on the outcomes of a disease outbreak.

“Making 20 per cent of the population unable to share or believe harmful advice – or ‘immunizing’ them against fake news, had the same positive effect.

“Our second study, which focused on norovirus, showed that even if 90 per cent of the advice is good, some disease will still circulate.

“In our second study, we were also interested in the ‘herd immunity’ levels required to ‘immunise’ people against fake news. The modelling suggests that any ‘immunity’ against bad advice reduces outbreak impacts.



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