CHARLOTTESVILLE, Va. (CBS19 NEWS) -- Good news may be on the horizon as the Blue Ridge Health District reported its lowest number of new COVID-19 cases since early August on Monday.

There were 25 new cases reported, which is nothing compared to the numbers the district saw in September when the Delta variant hit its peak. At that time, there were between 150 and 200 new cases a day on average.

BRHD's spokesperson Ryan McKay explains why the district thinks cases are starting to drop off.

"I think the decline has something to do with the vaccine uptick we have seen over the course of the past month and a half. I also think that Delta has already infected a large group of people,” he said.

McKay adds variants can last, but once they infect a large group of people, they can sometimes run their course. 

He claims it's still possible a new variant that's more transmissible could emerge, which is why he says it's important to get vaccinated.

State-wide, McKay says nearly 99 percent of new COVID infections are in the unvaccinated.

Nationwide, the White House says 77 percent of eligible Americans have received at least one dose of a COVID-19 vaccine. 

President Joe Biden's vaccine mandate impacted nearly 100 million Americans, but 66 million still haven't gotten their vaccine.