Over 80% of people in Britain are not adhering to self-isolation guidelines when they have Covid-19 symptoms or had contact with someone who has tested positive, a study has found.
A majority were also unable to identify the symptoms of Covid-19, the respiratory disease caused by the new coronavirus.
The research raises major questions about the effectiveness of England's Test and Trace programme as Prime Minister Boris Johnson seeks to keep a lid on rising infection numbers with new restrictions.
The research, led by King's College London, found that only 18.2% of people who reported having symptoms of Covid-19 in the last seven days had not left home since the symptoms developed, and only 11.9% requested a Covid-19 test.
It also found that only 10.9% of people told by the NHS Test and Trace scheme to self-isolate after close contact with a Covid-19 case had done so for 14 days as required.
The government last week introduced fines of up to 10,000 pounds ($12,780.00) for breaking self-isolation rules, and are offering a 500-pound support payment to low-paid workers who lose income from quarantining.
The researchers said that financial support for self-isolating could encourage adherence.
"Our results suggest that financial constraints and caring responsibilities impeded adherence to self-isolation, intending to share details of close contacts, and quarantining of contacts," they wrote.