Unions want attitudes towards people working with viruses such as flu and colds to change.
Due to the pandemic, people in certain occupations have the ability to work from home - with about 5.6 million people in the UK doing that during the height of the pandemic.
"I have concerns that there is going to be pressure on workers to come into work, even if they are feeling unwell," said Graham Perkins of the USDAW union which represents about 400,000 workers. "It's really important that the learnings that we've taken from this pandemic are that we can work from home.
Teachers, according to the largest education union, "feel that they can't leave their class because want to be there for the children who are learning".
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