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Miscarriage queries answered

The Food & Health Bureau today said there is no evidence that COVID-19 vaccination will increase the risk of miscarriage for recipients.   It made the remarks in response to media enquiries on the number of miscarriage cases involving people who have been inoculated with COVID-19 vaccines.   From April 12 to May 9, there were 396 miscarriage cases for those without a vaccination record while the number of miscarriage cases for those who had a vaccination record was nine, according to the Hospital Authority's information.   There is so far no clinical evidence the miscarriage cases were caused by vaccines, the bureau emphasised.   It added that the overall rate of miscarriage in Hong Kong is similar to that recorded in the past three years. http://dlvr.it/RzhT7m

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False positive test results probed

The Government said today it has completed the investigation of the false positive virus testing results by private laboratory BGI and requested it to continue to strictly follow the improvement measures to ensure that such an incident will not occur again.   When the Department of Health’s Public Health Laboratory Services Branch conducted confirmatory tests for preliminary positive specimens referred by BGI on January 29, February 1 and 2, it found the COVID-19 testing results of some of these specimens to be negative.   The Hospital Authority arranged new specimens to be collected from these cases for further testing, which also tested negative.   The incident involved 16 false positive results, including eight cases from the Targeted Group Testing Scheme for teaching & non-teaching staff & staff of boarding section of special schools on January 29 and four cases from the compulsory testing arrangement for residents and visitors of Heng Lok House of Tin Heng Estate in Tin Shui Wai on February 1.   The other four cases pertained to specimens collected from a mobile testing station and a community testing centre.   The laboratory has conducted a thorough investigation into the root cause leading to false positive results in accordance with the Government's request, and submitted to the Department of Health on February 11 a report examining the potential areas of lapses, including human error, reagents carryover or contamination and environmental contamination as well as the corrective and improvement measures taken.   The laboratory adopted additional confirmatory tests on preliminary positive specimens as one of the corrective and improvement measures from February 4. It was noted that no further false positive results have been detected from BGI since then.
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