Only one event related to San Antonio was detected in this period. The U.S. Navy reinstated its mandatory flu vaccine policy following a severe outbreak at Lackland Air Force Base in Texas, which sickened over 220 trainees and caused one death.
- The U.S. Navy reinstated mandatory flu vaccinations for deploying sailors and trainees, reversing a previous policy that made the vaccine optional.
- The policy change was triggered by a severe flu outbreak at Lackland Air Force Base in Texas, which resulted in one death.