[6]　除非医生正在做专门针对这种感染的实验室检测：‘Deadly Heartland Virus Is Much More Common Than Scientists Thought', National Public Radio, 16 Sept. 2015.
[7]　几天之内，34人死亡：‘In Philadelphia 30 Years Ago, an Eruption of Illness and Fear', New York Times, 1 Aug. 2006.
[8]　军团菌属广泛分布于土壤：‘Coping with Legionella', Public Health, 14 Nov. 2000.
[9]　阿克雷里病也出现了同样的情况：‘Early Outbreaks of ?Epidemic Neuromyastheniaせ?.
[10] 一种疾病是否会成为流行病：New Scientist, 9 May 2015, pp. 30-33.