COVID-19 live updates: Cruise ship must remain at sea after 55 people test positive

Airlines for America (A4A), the group that lobbies on behalf of all major U.S. airlines, sent a letter to U.S. Centers for Disease Control and Prevention Director Rochelle Walensky Thursday urging her to reconsider the 10-day quarantine policy for fully vaccinated passengers who have breakthrough cases.

Nick Calio, A4A’s CEO, said the omicron surge “may exacerbate personnel shortages and create significant disruptions to our workforce and operations.”

He echoed calls from Jet Blue and Delta Airlines to shorten the isolation period to five days.

“In turn, those individuals would be able to end isolation with an appropriate testing protocol,” Calio wrote.

-ABC News’ Amanda Maile