Crop diversity are all susceptible to a single fungus, "Fusarium oxysporum" (Panama disease); large areas of the crop were destroyed by the fungus in the 1950s. 'Gros Michel' has been replaced by the current main banana on the market, the 'Cavendish', which in turn is (2015) at risk of total loss to a strain of the same fungus, 'Tropical Race 4'. Such threats can be countered by strategies such as planting multi-line cultivars and cultivar mixes, in the hope that some of the cultivars will be resistant to any individual outbreak of disease. The implications of crop diversity are at both local
Rare Disease Day leading up to Rare Disease Day included other policy-related events in numerous locations, such as a reception in the British Parliament where policymakers met with individuals with rare diseases to discuss issues such as "equal access and availability of prevention, diagnosis, treatment and rehabilitation." Rare Disease Day was observed for the first time in Panama, Colombia, Argentina, Australia, the People's Republic of China, and the United States. In the United States, NORD signed on to coordinate Rare Disease Day on February 28 and collaborated with media partner The Discovery Channel and program partner "Mystery Diagnosis", as well about 180 other