New York will offer vaccines at some subway stops through a pilot program.

Commuters left the West 4th Street subway station in New York in February.
Credit...Amr Alfiky/The New York Times

Officials in New York are trying to boost a flagging vaccination campaign by setting up temporary walk-in vaccination sites at eight subway and train stations this week, Gov. Andrew M. Cuomo said on Monday.

From May 12 to May 16, the walk-in sites will be open at various times at subway stations including the ones at 179th Street in Jamaica, Queens, and at Stillwell Avenue in Coney Island, Brooklyn, from 8 a.m. to 1 p.m. Sites at the Long Island Rail Road station in Hempstead and a Metro-North Railroad station in Ossining will be open from 3 p.m. to 8 p.m.

A site will be open at Penn Station in Manhattan from 3 p.m. to 8 p.m. and at Grand Central Terminal from 8 a.m. to 1 p.m.

People vaccinated at the rail and subway locations can get a free seven-day MetroCard or two free one-way tickets for the Long Island Rail Road or Metro-North. Officials will use the Johnson & Johnson vaccine at the stations, Mr. Cuomo said. The program is a pilot and may be extended, he said.

“You are walking into the subway station anyway, you are walking past the vaccination site, it’s a one-shot vaccination, stop, take a few minutes, get the vaccine,” he said.

The pop-up sites at the stations — and the free tickets — are part of a broader, nationwide push to offer creative incentives to get people vaccinated. New Jersey, for example, is offering a “shot and a beer” for residents who get their first vaccine dose in May and visit participating breweries in the state.

In New York City, Mayor Bill de Blasio announced on Monday a plan to give free tickets to events and attractions like the New York Aquarium, the Brooklyn Botanic Garden or professional soccer games to people who get vaccinated.

Vaccinations so far have helped drive down positivity rates and hospitalizations across New York State, Mr. Cuomo said. He said on Monday that the number of hospitalizations statewide was 2,016, the lowest since Nov. 15. The statewide seven-day average rate of positive test results announced by the state on Sunday — 1.45 percent — was the lowest since Oct. 28.

Still, Mr. Cuomo said the pace of vaccinations was tapering off, both in New York and nationwide, potentially allowing the coronavirus to linger. Younger people and people who question the vaccine’s safety and doubt the trustworthiness of the government in particular were not getting vaccines, he said.

Mr. Cuomo said that half the seats at home games for the New York Islanders during the National Hockey League playoffs, which begin this month, will be reserved for people who are vaccinated. They will have to stay three feet apart, he said. The other half will be available to unvaccinated people who must remain six feet apart, he said. Everyone will be required to wear a mask.

In New York City, officials said they were making plans to provide the Pfizer vaccine to children ages 12 to 15, which the Food and Drug Administration announced on Monday evening that it had authorized.

“We want to immediately get to work vaccinating young people,” Mr. de Blasio said at a news conference on Monday morning.

The health commissioner, Dr. Dave Chokshi, said the city would begin administering the vaccine to those adolescents at its existing network of vaccination sites. The city has also been working with pediatricians to prepare them to answer questions about the vaccine and eventually administer it in their offices, and it would distribute information about vaccination at city schools to try and reach a broad audience of eligible teenagers.

The governor also said that New York had waived its residency requirements for vaccines and would encourage visitors from out of state to get shots in New York, with the hope of reinforcing the city’s struggling tourism industry.

“If you’re a tourist and you come to New York, we’ll give you a vaccine,” Mr. Cuomo said.

Michael Gold and Daniel E. Slotnik contributed reporting.