Nearly 160 sickened in Texas after US defense chief makes flu vaccine optional: Report (opens original article in a new tab)

Nearly 160 people in Texas became ill following the US defense chief's decision to make the flu vaccine optional, with 40% of Air Force trainees choosing to receive it.

• Nearly 160 people in Texas fell ill
• US defense chief made flu vaccine optional
• About 40% of Air Force trainees received vaccine