A TOTAL of 165 staff at the Kober food factory in Cleckheaton have tested positive for Covid-19.
Kirklees Council said the positive cases are being followed up by the NHS Test and Trace programme and they are being advised to self-isolate for seven days.
Anyone identified as a close contact of a positive case is being advised to self-isolate for 14 days.
The factory closed for a week last Monday after the coronavirus outbreak was found and it re-opened this Tuesday.
The news of the outbreak was not released until Thursday when the health secretary revealed it at the daily Downing Street briefing.
The company supplies Asda which said the factory would re-open with extra safeguards in place.
Kirklees Council said the whole workforce had been offered testing. It said the testing is likely to have identified people who had mild illness, or even some not showing symptoms who may have otherwise gone undetected and could have infected others.
The Council added that the detection of outbreaks of Covid-19 are now likely to become more common across the country with the introduction of NHS Test and Trace. It said the case in Kirklees is an early example of this new system being implemented.
Rachel Spencer-Henshall, Director of Public Health at Kirklees Council, said: “I’d like to thank Kober for acting quickly and working with us and Public Health England to help manage this outbreak.
“They reopened their factory on 23 June on a reduced capacity and only colleagues that have been tested and declared fit to return are on site.
“We’re satisfied with health and safety measures on site which include separation of colleagues on different shifts and as an additional precaution, checking the temperature of colleagues before they enter the site.
“Our advice to residents is to continue to socially distance, wash hands regularly for 20 seconds with soap and water and get tested if they have symptoms.
“Providing you have not been contacted and told otherwise, you can continue to leave the house following the latest government advice.”