Serology testing has revealed nearly half of the 323,000 migrant workers living in Singapore dormitories were infected with Covid-19, far higher than the official tally and indicating the virus spreads widely among people who may not have any symptoms. In neighboring Malaysia, which supplies about two-thirds of the world’s latex gloves, the government last month imposed mandatory Covid-19 screening for …
So far more than 100 people in Victoria have had a saliva test for coronavirus after the state became the first in Australia to roll out the more pleasant, albeit slightly less exact, option. The institute says the saliva test has a sensitivity of around 87 per cent; in other words, if you 'spit test' 100 people who all have …
