There were three new cases of COVID-19 in Warren County in Tuesday’s data from the Pennsylvania Department of Health, and the county’s transmission rate is substantial, according to the Centers for Disease Control and Prevention (CDC).

The rate varies and the county’s was reported as “high” — one of four in the state — earlier this week.

Only Crawford County was listed as having high transmission as of Monday and only Fulton and Tioga counties were listed in the low category.

In places like Warren County, the CDC is encouraging people — including those who are fully vaccinated — to wear masks indoors.

“Among strategies to prevent COVID-19, CDC recommends all unvaccinated persons wear masks in public indoor settings,” the CDC said. “Based on emerging evidence on the Delta variant (2), CDC also recommends that fully vaccinated persons wear masks in public indoor settings in areas of substantial or high transmission.”

“Fully vaccinated persons might consider wearing a mask in public indoor settings, regardless of transmission level, if they or someone in their household is immunocompromised or is at increased risk for severe disease, or if someone in their household is unvaccinated – including children aged less than 12 years who are currently ineligible for vaccination, according to the CDC.

The CDC reported a 300 percent increase in the number of nation-wide COVID-19 cases from mid-June through late July “driven by the highly transmissible B.1.617.2 (Delta) variant.”

There have been 106 deaths attributed to COVID-19 in the county.

According to the CDC, 18,698 residents had received at least one dose — 47.7 percent of the population — and 15,082 were fully vaccinated — 38.5 percent — as of Monday morning.

Counting only those over 12 years of age, 54.6 percent have received at least one dose and 44.1 percent are fully vaccinated.

According to the CDC, 544 residents under the age of 18 have been partially vaccinated, with 522 of those being fully vaccinated. Among older county residents, CDC data shows 82.3 percent of those 65 and older have received at least one dose and 65.2 percent have been fully