Migrant labourers rest in cement pipes during an extended nationwide lockdown to slow the spreading of coronavirus disease in Lucknow, India, on Wednesday. Reuters

India said on Wednesday that it plans to manufacture thousands of wristbands that will monitor the locations and temperatures of coronavirus patients and help perform contact tracing.

The wristband project aims to track quarantined patients and aid health workers and those delivering essential services. India is ramping up surveillance as it begins to ease one of the world’s strictest virus lockdowns.

India has also ordered a pause in testing for antibodies to the coronavirus because of concern over the accuracy, health officials said on Wednesday, complicating the fight against the epidemic as its tally of cases nears 20,000, including 640 deaths.

The wristbands mirror a similar programme in Hong Kong, where authorities used bands to monitor overseas travellers ordered to self-isolate.

Broadcast Engineering Consultants India, a government-owned company, will present wristband designs to hospitals and state governments next week and work with Indian start-ups to manufacture them. George Kuruvilla, the company’s chairman, said the wristbands are likely to be rolled out in May.

He said the wristbands will be used to monitor the movements of quarantined patients, both at home and at hospitals, and any spikes in their body temperature. They will send an alert to public health officials if patients move outside their quarantine zone. The devices will also have an emergency button that wearers can use to call for help.

The wristband will let health workers know if people they encounter have been to high-risk areas or have been in contact with an infected person, while aiding those delivering essential services such as groceries or medicines.

It will capture all the places an infected person has visited, the routes they took, determine if they had any foreign travel and identify those who were in their vicinity. It will also help in creating a geofence, or a virtual perimeter, around areas being monitored, such as common meeting places, public transit or places for religious gatherings. A person leaving or entering the virtual perimeter could be alerted through the wristband. The monitoring has raised privacy concerns.

Dr Anant Bhan, a public health and bioethics expert, said it is “important to factor in privacy protections and data protections” for both apps and wristbands.
“It is also important to ensure that where possible, consent is sought for the use of location tracking and sharing. Such initiatives could be useful for public health and surveillance purposes, but should not be used to stigmatise individuals or communities,” he said.

Associated Press