Nigeria has accused Pfizer of fraud in a fresh court case filed against the drugs firm over its alleged role in the deaths of Nigerian children. The government...claims Pfizer conducted illegal trials of an anti-meningitis drug that killed and disabled children...Pfizer has denied all wrongdoing and maintains that it had local and international approval for the drug trial, which it says helped to save lives. But government lawyers have now filed a new lawsuit adding a number of additional charges to the original claims, which follows the recent discovery of new evidence. This includes papers that suggest Pfizer committed fraud by not obtaining consent from the affected families as they were obliged to do under company rules, government lawyers said.