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An investigation into a coronavirus-hit farm in Herefordshire has now been widened to include others in England and Scotland.

The total number of positive coronavirus cases linked to the outbreak at AS Green & Co in Mathon now stands at 93, Public Health England (PHE) said.

In an update on Wednesday evening, PHE said 76 workers who travelled on to other farms in England came to the UK on the same flight as the Herefordshire farm workers.

It added that these 76 people have already been offered testing and no further cases have been identified to date.

A further 63 workers who travelled on to Scottish farms were on the same flight.

PHE said it has notified public health authorities in Scotland so this group can be "followed-up appropriately".

A group of workers who travelled to the UK by private coach, including some of those who went on to work at AS Green and Co, are also being followed up, it added.

Another worker fled the farm, despite being told not to.

PHE said the agency that employed the worker (who tested negative for the virus) is in contact with them and has been advised they are self-isolating. Three other workers who fled the farm earlier have been traced.

Karen Wright, director of Public Health for Herefordshire, said as testing of workers at the farm continues, officials expect to see the number of cases rise over the coming days "before social distancing and infection prevention measures start to take effect".

She added that workers have been asked to remain on site and self-isolate to "reduce risk of spread within the workforce and into the wider community", and food and essential supplies were being delivered to the farm during this time.

She said she knows local residents are concerned, but added the risk to the general public "remains low"