The Ministry of Public Health will next month be launching "Mor Prom," a phone app that lets people book their Covid-19 vaccines.

"I would like all Thai people to download the application to reserve their Covid-19 vaccination," Dr Kiattiphum Wongrajit said on Thursday.

"We need to create herd immunity to prevent another outbreak and revive our economy. To do so, we do need to get the vaccine to at least half of our population."

The app, expected to launch on May 1, allows users to book their free jabs at some state hospitals and public health stations, from June.

It also includes a feature that enables post-vaccination monitoring to check for side effects.

Those registered with Mor Prom in June will be allocated up to five million doses of the AstraZeneca vaccine produced locally by Siam Bioscience.

Each hospital in the government's scheme is expected to administer 500 doses per day, or 10 million doses per month, according to Dr Kiattiphum. The Public Health Ministry will also be setting up mobile vaccine units to reach people in remote areas.

By the end of this year, Dr Kiattiphum said the ministry planned to administer 61 million doses of AstraZeneca vaccines and two million doses of Sinovac's.

As most vaccines require two doses for immunisation, the 61 million doses the government bought earlier this year covers roughly 30 million people and prioritises those considered most vulnerable.