The incident at Quest Laboratories happened last Wednesday and was discovered two days later when clinics began contacting the lab to ask about the test results for these patients.
Under the Sash programme, patients who meet certain criteria are swabbed and then sent home to wait for their test results. Their swab samples are sent to a lab, where testing can take up to three working days.
One of the lapses involved an in-house courier who did not follow the standard operating procedure (SOP) when handing over the untested samples to the lab and this resulted in the batch being disposed of alongside old samples, said the lab spokesman.
As of Sunday, the 87 affected clinics have been informed of the incident and 102 patients have been retested. Their results have turned out negative, said the lab.
The Health Ministry, which was notified of the incident last Friday, said it is working with the lab and the clinics to contact the affected patients to be re-swabbed as soon as possible.
The lab said the retested samples will be prioritised to ensure that affected patients receive their test results without further delay.
The ministry said it takes a serious view of the incident and is investigating the matter. It added that it will work with the lab to put in place the "necessary corrective and preventive measures" to ensure such lapses do not happen again.
Meanwhile, Singapore reported four new COVID-19 cases on Monday, taking the country's total count to 57,880.
(Only the headline and picture of this report may have been reworked by the Business Standard staff; the rest of the content is auto-generated from a syndicated feed.)
Business Standard has always strived hard to provide up-to-date information and commentary on developments that are of interest to you and have wider political and economic implications for the country and the world. Your encouragement and constant feedback on how to improve our offering have only made our resolve and commitment to these ideals stronger. Even during these difficult times arising out of Covid-19, we continue to remain committed to keeping you informed and updated with credible news, authoritative views and incisive commentary on topical issues of relevance.
We, however, have a request.
As we battle the economic impact of the pandemic, we need your support even more, so that we can continue to offer you more quality content. Our subscription model has seen an encouraging response from many of you, who have subscribed to our online content. More subscription to our online content can only help us achieve the goals of offering you even better and more relevant content. We believe in free, fair and credible journalism. Your support through more subscriptions can help us practise the journalism to which we are committed.
Support quality journalism and subscribe to Business Standard.