Tesco would not confirm how many staff members were off work due to Covid-19 but said the close contacts of those affected had been informed.
A Tesco spokesman said: “A number of colleagues at our West Bromwich Extra store are off work due to Covid-19. Their close contacts have been informed. The safety of our colleagues, customers and suppliers remains our number one priority and we are working with local public health authorities, following all Government guidance and taking the relevant precautions.
"We have extensive measures across all of our stores to help keep everyone safe, including protective screens at every checkout, social distancing signage and regular cleaning.”