The Ebola virus
From 2014 to 2016, the Ebola virus spread from West Africa, causing nearly 29,000 cases and 11,316 deaths in West Africa alone. Outside the region, around 2,500 were infected and 1,597 died, according to the CDC.
Ebola severely impacted Guinea, Liberia and Sierra Leone, causing an estimated $2.2 billion in GDP loss in the region.
The United States, United Kingdom and Germany donated over $3.6 billion to help respond to the outbreak.
What experts say a pandemic could cost the world economy
Assessing what the impact of an extreme outbreak — a pandemic of an influenza deaths — would be, a 2018 study estimated that a pandemic that kills 720,000 would cost the global economy around $500 billion per year of the outbreak.
That's around 0.6% of global income annually, the study by the World Health Organization said. It also said that a $500 billion annual hit on the economy from a pandemic is on the lower end of estimated annual losses from climate change, which it said is around 0.2% to 2% of global income.
A global outbreak would hurt poorer countries the most, the study said, causing a loss of 0.3% in annual income for high-income countries, but a more significant loss of 1.6% in lower-to middle-income countries.
What the Wuhan virus is already impacting
The Wuhan virus, like previous outbreaks, has impacted various industries from travel to healthcare.
Stock prices in the travel, retail, and luxury-goods markets fell this week under fears that an outbreak would decrease demand.
The virus has also impacted airline stock prices, with United Airlines and Delta Air Lines falling 2.5% on Tuesday, and American Airlines falling 4.2%, CNBC reported.
But, the virus has bumped pharmaceutical stocks, with pharma stocks in China rising by 10% earlier this week.