https://www.siliconvalley.com/2021/03/11/johnson-johnson-covid-vaccine-state-leaders-line-up-for-one-and-done-shot/

One by one Thursday morning, several of California’s top public health officials took a seat in a white folding chair at the mass-vaccination site in the parking lot of the Oakland Coliseum. They sat patiently, upper arms exposed, as a worker swabbed their skin and injected them with the COVID-19 vaccine from Johnson & Johnson — all before a row of more than a dozen TV cameras, plus more photographers and reporters.

It was an effort to show state leaders are putting their money where their mouths are when they tout the effectiveness and importance of the newly approved single-shot vaccine.