Some aerospace companies including business jet manufacturers Textron and General Dynamics's Gulfstream division said they no longer planned to attend the Singapore Airshow due to the new coronavirus epidemic.
The trade portion of Asia's biggest airshow, held every two years, is set to begin on Feb. 11 under the shadow of the fast-spreading virus that has prompted Singapore to deny entry to all Chinese visitors and foreigners with a recent history of travel to China, where the virus originated.
The death toll from the coronavirus has risen to 361 in China, bringing the number of confirmed infections to 17,205. The flu-like virus, which can be transmitted from person to person, has spread to more than two dozen other nations and regions.
Experia Events, the organizer of the Singapore Airshow, said last week the show would continue as planned, but the government measures meant it would "undoubtedly see a reduction in terms of the number of expected exhibitors and visitors this year".
The organizer said there would be doctors and medics on standby to attend to visitors who were feeling unwell.
In 2018, there were 54,000 trade attendees from 147 countries and 1,062 participating companies who come to network, examine products and sign deals covering commercial aviation, defense, maintenance and repair operations and business jets.
Typically, it is not a major show for commercial plane orders but talks during the show can set the stage for deals that are completed later in the year.
Textron and Gulfstream said their decision to not attend was a precautionary measure to protect the health of employees.
South Korea's air force said on Monday it had decided not to participate as part of broader precautions against the coronavirus. Its Black Eagles aerobatic team has taken part in the flying display at Singapore airshows in recent years.
Russian aerospace group Rostec plans to send a reduced delegation to the show, Russian media reported. Rostec did not respond immediately to a request for comment.
The deputy administrator of the Civil Aviation Administration of China, Li Jian, is no longer listed as a speaker at a pre-show leadership conference on Feb. 10.
Commercial Aircraft Corp of China (COMAC), which is developing the C919 narrowbody jet, had been due to attend the airshow before the travel ban was announced. COMAC did not respond immediately to a request for comment.
The outbreak of the new virus has sent shivers through financial markets, with investors drawing comparisons to the 2003 outbreak of Severe Acute Respiratory Syndrome (SARS) that also started in China and killed 800 people globally.
Singapore, a Southeast Asian tourism hub where Chinese nationals make up the largest share of visitors, was among the worst hit outside of China during the SARS outbreak.