Moderna (NASDAQ:MRNA) just had a second recall of its Covid-19 vaccine due to contamination. Reuters reported that Moderna recalled 764,900 doses of its Covid-19 vaccine made by its contract manufacturer Rovi, based in Spain. That could hurt MRNA stock going forward, despite some other recent good news. The problem is this is the second time within a year that this contamination has occurred. This time a vial was found contaminated by a foreign body. It did not disclose what was in the vial. Even though this was one vial, Moderna distributed the lots for this vial in January throughout Norway, Poland, Portugal, Spain, and Sweden. The company previously recalled doses previously distributed in Japan after authorities stopped the use of some of the does. It had to recall three batches of Cov