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Technologists and health officials around the world are racing to develop smartphone apps to trace who has been in contact with car
af1 one riers of the novel coronavirus.Contact-tracing, a disease control tactic that traditionally relies on patients memories of their movements, identifies people they might have infected so they too can be isolated.First-generation apps
nike jordan mujer that use Bluetooth technologyBluetooth is a short-range radio technology used for things like connecting wireless headphones to a smartphone. It detects when another Bluetooth signal is near and can estimate the distance between devices making it a good tool for contact-tracing.Singapore s TraceTogether, launched in March, was the first Bluetooth-based contact-tracing app. When a person tests positive for Covid-19, health authorities can look at the person s Bluetooth history and, in Singapore s case, call all the people on that list and order them to quarantine.Countries that have launched si
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HONG KONG:Hong Kong was reeling Sunday from some of the worst clashes to rock the city in three months of anti-government protests after hardcore demonstrators hurled petrol bombs at police who fired tear gas and deployed water cannon, before making mass arrests inside train stations.Tens of thousands of people defied authorities to march through the streets of the financial hub in an unsanctioned rally on Saturday, which rapidly descended into violence that stretched into the early hours.Protesters were out to cause further travel disruption on Sunday, with hundreds gatheri
air max sale ng outside the airport's bus terminal. Authorities then shut down the city's express t
air force 1 donna rain service to the airport.It followed chaotic scenes on Saturday night, as police chased protesters into metro stations, beating people with batons and carrying out arrests.Hong Kong protesters expected to regroup despite police banVideo footage ca
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