SAMHS COVID-19 Nurse Info Line modifies hours Published April 15, 2020 59th Medical Wing Public Affairs JOINT BASE SAN ANTONIO-LACKLAND, Texas -- Effective April 18, the San Antonio Military Health System COVID-19 Nurse Info Line will reduce their hours of operations to only the weekdays. Patients with COVID-19 concerns, symptoms or test result questions are advised to call 210-581-2266, option 6, Monday through Friday from 7 a.m. to 5 p.m. Patients who have concerns/symptoms outside of the operational hours identified above, should call the MHS Nurse Advice Line at 1-800-TRICARE (824-2273), option 1, or visit MHSNurseAdviceline.com for a web or video chat.