Subway services in New York City are going to be less frequent from Monday to Thursday.
The New York City Transit Authority said on Sunday that subways would be less frequent and that passengers might have to wait longer for their train. People were advised to check travel information.
The NYCTA said that it had been affected by the surge.
Other transport providers have slashed services as staff members have been exposed to the virus. Many US airlines canceled flights on Monday due to staff sickness.
There have been a lot of carbon-19 cases in the US in recent weeks. The most recent day for which data is available over the holiday period is Wednesday, when 243,817 new cases were reported by the Centers for Disease Control and Prevention.
The highest number of new cases since the beginning of the Pandemic was reported on January 8 by the CDC.
The Omicron COVID-19 variant has led to a rise in cases. The US has the most cases of Omicron in the world. Some data suggests that the variant's symptoms are milder than previous ones.
New York City has seen a huge increase in COVID-19 cases. The city's seven-day moving average hit a record 12,480 cases on Wednesday, the most recent day for which CDC data is available. The city's seven-day moving average reached 6,346 at the peak of last winter.
Travelers can get free tests at the Grand Central Station and the Times Square subway station. The Jackson Heights-Roosevelt Avenue-74th Street subway station and the Times Square-42nd Street subway station have both opened sites for booster jabs.