Like penicillin and saccharine, it was the product of a laboratory accident, invented by mistake. (entrepreneur.com)
There is no paid sickness leave, nor maternity or paternity leave (except, since this year, for those receiving central government grants, who are now entitled to 75 % of salary for up to 4 months) and the student will not benefit from a disability pension if he or she is injured in a laboratory accident. (sciencemag.org)
No one knows where it came from, though it looks like an H1N1 that circulated in the Soviet Union in 1950 and some suspect it escaped in a laboratory accident. (newscientist.com)