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Finding 'patient zero': the challenges of tracing the origins of coronavirus


March. 04, 2020

Identifying a "patient zero" in each country could help curb the spread of COVID-19. Efforts to find initial patients are hindered by the nature of COVID-19 symptoms. Find more stories about tracing the origins of COVID-19, from China to Singapore to the US.
Every country that confirms a local case of COVID-19 – and there are more than 70 such countries now – faces the daunting task of tracking down its initial patient.
This is an important means to safeguard the broader population because locating everyone that this “patient zero” has come into contact with can help curb further transmission. But the people contracting this particular coronavirus do not show enough signs of being sick quickly enough to make their condition known before they may have passed it on. This pattern has helped to make each new national origin probe of COVID-19 – as it continues to spread – incredibly difficult.
While some countries have seen a gradual rise in confirmed cases, others, like Italy, have endured unnerving spikes weeks after their initial confirmation. Italy’s first identified case was a 38-year-old man from a town southeast of Milan who hadn’t traveled to China. Scientists originally believed Italy’s patient zero was a colleague of his who had just returned from a business trip to China, but this person tested negative – and no other obvious candidates were identified.
Iran, too, has suffered from a dramatic uptick in confirmed cases of COVID-19, and over a relatively short period of time. The country’s health minister identified an unnamed merchant from Qom who regularly traveled to China as Iran’s potential patient zero. The merchant, who has since died, had allegedly used indirect flights to get around a ban on direct passage to China implemented in late January, the health minister said – just a few days later , the country’s deputy health minister tested positive for COVID-19.
As COVID-19 has spread, so has the popularity of the 2011 film “Contagion” – which has a plot built around the initial victim of a deadly virus. Real-life efforts to track down patient zero are proving to be more complicated. Ultimately, it’s an open question whether singling out one person as a source of the epidemic is even appropriate, as it may do more harm than good by leading to stigma or misinformation.
What is the World Economic Forum doing about the Coronavirus outbreak? A new strain of Coronavirus, COVID 19, is spreading around the world, causing deaths and major disruption to the global economy. Responding to this crisis requires global cooperation among governments, international organizations and the business community, which is at the centre of the World Economic Forum’s mission as the International Organization for Public-Private Cooperation. The Forum has launched a new community, bringing together experts from the World Health Organization with business leaders around the world, which will hold regular virtual meetings to boost collaboration. As an organization, the Forum has a track record of supporting efforts to contain epidemics. In 2017, at our Annual Meeting, the Coalition for Epidemic Preparedness Innovations (CEPI) was launched – bringing together experts from government, business, health, academia and civil society to accelerate the development of vaccines. CEPI is currently supporting the race to develop a vaccine against this strand of the Coronavirus. Show
For more context, here are links to more reading, courtesy of the World Economic Forum’s Strategic Intelligence platform :
Identifying everyone a COVID-19 patient has had contact with is difficult even when you know how they became infected – and if you don’t, the task is herculean. In the US, these investigations are falling to already-overworked state and county health agencies. ( STAT ) The plot thickens: a study by Chinese researchers published in The Lancet suggested that the “symptom onset” of the first COVID-19 patient occurred on 1 December 2019, and that there was no clear epidemiological link between this first patient and later cases. ( The Lancet ) Apple co-founder Steve Wozniak caused a stir – and raised questions about responsible online behaviour in the midst of an epidemic – when he abruptly announced on social media that he and his wife might be America’s patient zero. Turns out it was just a sinus infection. ( The Next Web ) Tracking down a country’s initial COVID-19 patients can be complicated by testing criteria. While the US’s narrow criteria meant the CDC had tested fewer than 500 people in the US by late February, South Korea had already tested more than 66,000 people by that same point. ( Kaiser Health News ) How Singapore connected the dots: A COVID-19-related effort that zeroed in on a Chinese New Year gathering has helped the city-state effectively contain the spread of the coronavirus. ( The Diplomat ) Important measures can be taken before identifying a "patient zero" even becomes necessary. When the Swedish government distributed a brochure in 2018 informing people how to best secure essentials like food and water during a disaster, it was mocked. Now, the move seems prescient. ( RUSI )
On the Strategic Intelligence platform, you can find feeds of expert analysis related to Global Health , Biotechnology and hundreds of additional topics. You’ll need to register to view.
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