GREENWICH — For the third time this month, Family Centers Inc. will be offering free coronavirus testing at its health clinic at Wilbur Peck Court in Greenwich.

Testing is available by appointment only from 8 a.m. to 1 p.m. Thursday, the nonprofit agency said. To make an appointment, call 203-717-1760.

“We want to be able to stop the spread of this virus,” said Dennis Torres, vice president of Health Care Programs for Family Centers. “We were at capacity the last time we did this, and we’re hoping to be able to test a lot more people and get them the results that day.”

The test is free and open to everyone, although the goal is to serve residents of public housing and other hard-to-reach populations.

“We want to reach people and we’re willing to go out into the community so they can find us,” Torres said.

People who show symptoms of the virus or who have been exposed to someone with the virus should be tested, he said.

According to the Centers for Disease Control and Prevention, symptoms include a cough and shortness of breath as well as at least two of the following: fever, chills, repeated shaking with chills, muscle pain, headache, a sore throat or a new loss of taste or smell.

Family Centers has held two previous testing days at the Wilbur Peck clinic. On May 8, Torres said they did 50 tests, with 10 positive for the coronavirus.

Several of the cases were diagnosed in people who did not show any symptoms but who had family members with the virus. As a result of the testing, the spread of the virus was potentially reduced, Torres said.

On Thursday, Family Centers hopes to do 120 more tests then, twice as many as on the previous testing days. A backup in the lab has made instant results impossible, Torres said the results will be back that day and the clinic will notify patients with the results.

The testing is paid for through the Community Health Center Association of Connecticut in partnership with the state Department of Public Health

Torres said they are hopeful the program will continue into June, but he had no further details on more testing days.

Testing is also be available at Greenwich Hospital through a mobile testing site in its employee parking lot.

kborsuk@greenwichtime.com