EXETER — Another patient was added to the growing list of those linked to a hepatitis C outbreak at Exeter Hospital on Tuesday, bringing the total number to 31 patients allegedly infected by a hospital worker.

The state's Division of Public Health Services announced the new patient as planning continues to test as many as 3,300 additional patients who may have been exposed through the hospital's main operating rooms and intensive care unit between April 1, 2011, and May 25, 2012.

The latest patient diagnosed with the same strain of the potentially fatal virus was also treated in the hospital's cardiac catheterization lab – the same place where 30 other patients are believed to have been infected.

Medical technician David Kwiatkowski, 33, is accused of using syringes filled with the painkiller fentanyl on himself and then putting them back to be used on patients. Federal authorities have labeled him a “serial infector” who allegedly spread his own hepatitis C infection while feeding a drug addiction.

Meanwhile, the state Department of Health and Human Services' Emergency Services Unit is working on a new round of testing and on Monday morning began reaching out to patients to schedule specific times for them to have their blood drawn at various clinics being held starting on Friday. By the end of Monday, some 567 appointments were scheduled.

“We have worked very closely with our regional public health partners to offer clinic settings in several locations, and we are reaching out to patients to determine what date and location works best for each of them. We understand this is an anxious time for people so we are doing everything we can to ensure this is a smooth process for patients who are coming in to have their blood drawn for testing. We will continue our outreach to patients in hopes of reaching everyone who has been recommended for testing,” ESU Director Rick Cricenti said in a statement.

The following are the dates and locations of the DPHS clinics for which patients can schedule an appointment:

Cooperative Middle School, 100 Academic Way, Stratham, on Aug. 10 and 11.

Timberlane Regional High School, 36 Greenough Road, Plaistow, on Aug. 14 and 15.

Manchester Health Department, 1528 Elm St., Manchester, on Aug. 16, 17, and 18.

Rochester Middle School, 47 Brock St., Rochester, on Aug. 16.

The state has sent letters to patients who were treated in the main operating rooms and intensive-care units between April 1, 2011, and May 25, 2012.

Patients can also call 271-6617 to schedule their appointment.

Other testing options are also available. These include the following locations:

Exeter Hospital, Aug. 13-15, 7 a.m. to 6 p.m. You must schedule an appointment directly with Exeter Hospital by calling 580-6124 between 8:30 a.m. and 5 p.m. As of Monday night, Exeter Hospital had scheduled 173 patients to have their blood drawn for testing.

Portsmouth Regional Hospital, Hampton location, Monday through Thursday, 8 a.m. to 4 p.m.

Portsmouth Regional Hospital, Pease Tradeport location, Monday through Thursday, 8 a.m. to 4 p.m.

For the Hampton and Pease sites, no appointment is necessary, but patients will be asked to provide their letter and proper identification.

Patients also have the option of going to their own health care provider to have their blood drawn. The health care provider must coordinate with the public health lab for the testing by calling 271-4661.