1)World Health Organization:Health statistics and information systems. Estimates for 2000-2015. http://www.who.int/healthinfo/global_burden_disease/estimates/en/index1.html
2)Heymann DL, et al:Emerging and re-emerging infections. in Detels R, et al(eds):Oxford Textbook of Global Public Health(6 ed). Oxford University Press, 2015 http://oxfordmedicine.com/view/10.1093/med/9780199661756.001.0001/med-9780199661756-chapter-217?print=pdf
3)World Health Organization:International Health Regulations(2005)3rd ed. http://apps.who.int/iris/bitstream/10665/246107/1/9789241580496-eng.pdf?ua=1
4)World Health Organization:Early detection, assessment and response to acute public health events:Implementation of Early Warning and Response with a focus on Event-Based Surveillance Interim Version. http://apps.who.int/iris/bitstream/10665/112667/1/WHO_HSE_GCR_LYO_2014.4_eng.pdf?ua=1
5)World Health Organization:Emergencies preparedness, response. Alert & Response Operations. http://www.who.int/csr/alertresponse/en/
6)Grein TW, et al:Rumors of Disease in the Global Village:Outbreak Verification. Emerg Infect Dis 6:97-102, 2000 https://wwwnc.cdc.gov/eid/article/6/2/00-0201_article
7)Heymann DL, et al:Hot spots in a wired world:WHO surveillance of emerging and re-emerging infectious diseases. Lancet Infect Dis 1:345-353, 2001.
8)Woodall JP:Global surveillance of emerging diseases:the ProMED-mail perspective. Cad Saude Publica 17 Suppl:147-154, 2001
9)World Health Organization:Emergencies preparedness, response. Epidemic intelligence-systemic event detection. http://www.who.int/csr/alertresponse/epidemicintelligence/en/
10)World Health Organization:Emergencies preparedness, response. Event verification. http://www.who.int/csr/alertresponse/verification/en/
11)World Health Organization:International Health Regulations(IHR)monitoring framework:implementation status of IHR core capacities, 2010-2016. Surveillance:2016. http://gamapserver.who.int/gho/interactive_charts/ihr/monitoring/atlas2.html?indicator=i2
12)Internet Society:Global Internet Maps. https://www.internetsociety.org/map/global-internet-report/#global-internet-penetration
13)Morse SS:Public health surveillance and infectious disease detection. Biosecur Bioterror 10:6-16, 2012
14)Freifeld CC, et al:Participatory epidemiology:use of mobile phones for community-based health reporting. PLoS Med 7:e1000376, 2010
15)International Telecommunication Union:Statistics. http://www.itu.int/ITU-D/ict/statistics
16)UC DAVIS School of Veterinary Medicine:PREDICT. http://www.vetmed.ucdavis.edu/ohi/predict/