Covid has severely affected healthcare staff and may have killed between 80,000 and 180,000, the World Health Organization (WHO) says.

Healthcare workers must be prioritised for vaccines, WHO head Tedros Adhanom Ghebreyesus said, and he criticised unfairness in the distribution of jabs.

The deaths occurred between January 2020 and May of this year.

Earlier, another senior WHO official warned a lack of jabs could see the pandemic continue well into next year.

There are an estimated 135 million healthcare workers globally.