PICTURES! Preview tonight's 'infected' Big Brother 2013 highlights

The Big Brother 2013 housemates get their latest shopping task on tonight's show, as half of the group become infected.

This week the housemates have been set a Dead Set style shopping task, which has seen the housemates split into two groups.

Jack, Jemima, Jackie, Dexter, Dan, Sam, Sophie and Gina have been infected by the bug while the six safe housemates - Wolfy, Charlie, Hazel, Daley, Callum and Joe - must look after them.

The infected housemates have to stay in Quarantine and to past the task must leave by curing themselves by tackling a series of tasks.

In tonight's show Gina and Dan tackle the first tasks, called upside down therapy and Adrenaline Therapy.

Meanwhile, the infected housemates adjust to life confined to the Quarantine room, be unable to leave and being fed just disgusting medicine.

Tonight's show will also feature a live segment, with Emma Willis revealing which one of the three nominated housemates - Gina, Dexter and Jemima - is safe.

Big Brother UK's highlight show is on from 10PM this evening, Channel 5.

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