The health ministry's infectious diseases chief Daniel Koch said scientists had concluded that young children did not transmit the virus.

However, he said such meetings should be brief and not involve babysitting.

Switzerland is one of several European countries beginning to ease their lockdown measures.

This week, garden centres and hairdressers have been allowed to open their doors. Schools and shops selling items other than food will be allowed to reopen in two weeks' time.

Dr Koch told a news conference this week that the original advice to keep distance between children and their grandparents was made when less was known about how the coronavirus was transmitted.

"Young children are not infected and do not transmit the virus," he said. "They just don't have the receptors to catch the disease."

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