A number of pop-up vaccination sites on Long Island are helping to contribute to an uptick in people getting vaccinated, experts say.

Experts say another reason for the increase is due to fears over the delta variant and because some employers are starting to require vaccinations.

Ramon Rodriguez owns a deli on New York Avenue in Huntington Station. Rodriguez says he spends so much time behind the counter that he just kept putting getting vaccinated on the back burner. Thanks to the pop-up clinic near his deli, Rodriguez finally took the opportunity to get vaccinated Thursday.

Rodriguez says he doesn't have a lot of time to go somewhere so having it so close made it easy for him.

The clinic was set up by Catholic Health Services. Nurse Carolyn Gulotta says they have seen an increase in the number of people showing up to get the shot.

"We're reaching out to the community, and I think they appreciate it," says Gulotta. "It's nice to be where it's convenient for people and reach people who were a little bit on the fence."

There was also a pop-up clinic in Baldwin Thursday courtesy of Mount Sinai South Nassau. The Town of Hempstead Vaxmobile has been making stops throughout Nassau all week.

Manuel Mejia brought his two teenage children to get their first shots so that they will be immunized just in time for the first day of school.

"With this delta variant around, you wouldn't want them God forbid to pass it on to anybody or for them to catch it," says Mejia.

Nassau County Executive Laura Curran says, "If you're on the fence, talk to your health care professional, someone you trust. If this is the right time, take advantage of this."

The Vaxmobile will be at Hempstead Town Hall on Friday from 10 a.m. to 4 p.m. Officials expect to hit a major milestone -- reaching dose 5,000.