TUCSON - Banner-University Medical Center began drive-thru testing for COVID-19 Thursday morning after Pima County's number of confirmed COVID-19 cases rose to seven.

According to doctors at the site, the drive-thru testing began at 10 a.m. after outdoor testing stations were set up near the hospital at 1625 N. Campbell Ave. near Speedway Boulevard.

As of 4:30 p.m. Thursday, about 60 people have been screened for drive-thru testing. Of those, 20 individuals were swabbed for further testing for infection.

DEVELOPING: Drive-thru testing begins at Banner-University Medical Center. https://bit.ly/2QvaNTM Posted by News 4 Tucson - KVOA on Thursday, March 19, 2020

Doctors at the site said due to a limited supply of tests, patients must have a fever and a cough, an upper respiratory infection, runny nose or a sore throat; traveled outside of the country or a state with a high-risk of COVID-19 exposure; or had close contact with anyone who has tested positive with COVID-19.

People who do not meet the current criterium will not be tested, officials say.

On Wednesday, Banner Health announced it will no longer be allowed in Banner hospitals starting at 7 a.m. on Thursday.

The two exceptions to the visitor restriction are pediatric patients may have one adult visitor with them and laboring mothers may have one support person with them.