COVID-19 has so far proven deadlier than the 2002 to 2003 outbreak of SARS, which infected more than 8,000 people and killed at least 774.
But the disease is still far less lethal than annual flu infections.
The US Centers for Disease Control and Prevention (CDC) estimates between 22 and 31 million people catch the seasonal flu in the US each year.
The CDC also estimated anywhere between 12,000 and 30,000 Americans die from the flu each year.
Here in the UK, Public Health England said 1,692 people died from the flu between 2018 and 2019.