Informa, the world's largest exhibitions group, said today that 128 events with an estimated revenue of £425m have been delayed or cancelled due to the coronavirus outbreak. 

The rapid global spread of the coronavirus has rattled financial markets, caused supply disruptions and kept people indoors, which has led to the cancellation of many events. 

Informa markets, the business that brings half of the group's revenue, produces more than 450 international events annually in over 40 countries.

Its events include the China Beauty Expo, Monaco Yacht Show, World of Concrete and Arab Health. 

"As the impact of COVID-19 became clear, through our postponement programme we began re-scheduling brands, with around 45 large events now agreed or in the process of agreeing a move to later in 2020," the company said.

It added that it has postponed another 70 smaller events and cancelled 13. 

The company said the 45 large events have budgeted revenue of £350m, the 70 smaller events have a £50m exposure, while the 13 cancelled ones have £25m in revenue exposure. 

"In 2020, all three events businesses will see an impact from COVID-19," the company said.