SINGAPORE - The use of saliva testing to detect Covid-19 is undergoing field tests in Singapore, as health authorities assess if it can be scaled for widespread use.. Read more at straitstimes.com.
SINGAPORE - The use of saliva testing to detect Covid-19 is undergoing field tests in Singapore, as the health authorities assess if it can be scaled for widespread use.
Pooled tests involve using one Covid-19 test on a group of suspect cases, and if it yields a positive result, all individuals who were part of the group will be individually tested to determine the Covid-19 cases. The study, which took place from June 2 to June 26, was conducted among 200 migrant workers who were recruited from community care facilities and migrant worker dormitories.
The patients were tested up to three times - at three- to four-day intervals - to compare the sensitivity of different samples over time, as patients' viral load varies over the course of their infection, explained Prof Hsu. As the swabs were self-administered, it is likely that they reached only the front part of the nasal passage, which has a lower viral load, therefore yielding poor results.
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