Regulators are recalling more than half a dozen products produced by Japan's Chemo-Sero-Therapeutic Research Institute, known as Kaketsuken, after it acknowledged that for more than 40 years it has violated some regulations having to do with using additives and production methods that had not been authorized by the government. It devised a cover-up plan, according to a recent report, that now has been brought to light. The company has done work for Daiichi Sankyo and Takeda Pharmaceuticals on seasonal flu shots and other products and has a wide reach in the country and a series of licensing pacts with companies abroad. More from FiercePharmaAsia