Britain has turned to Portugal for a mass screening Covid-19 test that can prevent the spread of the disease and help reduce the death rate despite the UK banning travel to the country.
British officials have met with the Portuguese scientists at the Algarve biomedical centre which has developed a method of testing ten times as many people for a fifth of the price using the same laboratory equipment as now.
It means potential outbreaks in the population and asymptomatic carriers can be detected far earlier than at present for a fraction of the price, enabling public health officials