Fish spend a great deal of energy in sexual maturation and the aquaculture industry would like to avoid that by raising sterile fish. This would also prevent runaway farmed fish from mixing their genes with wild cousins. Norwegian researchers are on the case.
The Norwegian Institute of Public Health has found an elevated risk of narcolepsy among children and young adults who were vaccinated against the swine flu seven years ago. Some who did not take the vaccine against the pandemic of 2009 also developed this severe sleeping disorder.