GARY, Ind. (CBS) — Health and school officials in Indiana said coronavirus vaccinations there are “going very well.”

They were hosting a mass vaccination event this weekend in Gary, offering the one-shot Johnson & Johnson vaccine in a mobile unit supplied by the state.

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Gary Health Commissioner Dr. Roland Walker explained why that makes a big difference for some people.

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“The mobile unit allows them to move around the state – at large events, you know, at places like high schools. So today, with the Johnson & Johnson, not only does it allow us to do large events like this – it allows us to vaccinate the homeless population and homebound population, Walker said. “So the Johnson & Johnson is a really exciting addition to our vaccinations.”

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As of Saturday, 2,353,675 doses of COVID-19 vaccine had been administered in Indiana.