A guest who attended an annual fundraiser at American Martyr’s O’Donnell Hall in Manhattan Beach on Saturday, March 7, has tested positive for the new coronavirus, officials announced this week.

Other guests who attended the function, the nonprofit Saint Sebastian Sports Project’s 12th Annual Mulligan, and have symptoms are being tested, according to Clare Gurbach, the nonprofit’s executive director.

Gurbach’s statement, dated Monday, March 16, said the guest was not experiencing symptoms during the March 7 event.

“While we know there are many places people could have been exposed before and after the Mulligan as this virus has developed, we wanted to make sure you have this information as soon as possible,” wrote Gurbach. “The health and safety of anyone who participates in any SSSP event is of great importance to us.”

The Mulligan is an annual fundraiser for the nonprofit that helps low-income students with sports equipment, uniforms and league fees.

The event was sold out. According to the Saint Sebastian website, standing-room-only tickets were then sold for a discounted price.

The event was hosted by NBC sportscaster Fred Roggin.

It is unknown if the Saint Sebastian case has been reported to the LA County Health Department or if it is one of the two previous Manhattan Beach cases reported.

COVID-19, which stands for coronavirus disease 2019, is caused by a virus named SARS-CoV-2. Symptoms associated with the respiratory disease, which appear two-to-14 days after exposure, include fever, a cough and shortness of breath. While most people — including healthy young adults — will experience mild symptoms, the disease can be severe and possibly fatal for at-risk groups, such as the elderly and those with other health problems.