After reports of false results, a Chinese company investigating Covid investigated

Numerous Shanghai residents wrote on the Twitter-like Weibo platform this week that they received false-positive results from Zhongke Runda, which operates three testing centres in the financial hub of 25 million. The group's shares have slid since the reports first started on Monday. One woman said her daughter got a positive result after a Runda test and was sent to a quarantine facility with bad conditions. Shanghai health authorities said they had declared an investigation into an unspecified "third-party testing organisation" in response to online comments about test results. Story Highlights The city has been under lockdown for weeks as…