1999

• 22 December 1999
  1999 - Cholera, Comoros
• 17 December 1999
  1999 - New variant Creuzfeldt-Jakob disease, France
• 10 December 1999
  1999 - Cholera, Democratic Republic of the Congo
• 9 December 1999
  1999 - Cholera, Democratic Republic of the Congo
• 23 November 1999
  1999 - Yellow fever, United States of America
• 19 November 1999
  1999 - Cholera in Fiji
• 18 November 1999
  1999 - Cholera in Rwanda
• 18 November 1999
  1999 - Legionnaires' disease, Belgium
• 27 October 1999
  1999 - Cholera in Zambia
• 21 October 1999
  1999 - Meningococcal disease in Angola
• 20 October 1999
  1999 - Meningitis in Rwanda
• 6 October 1999
  1999 - West Nile fever in the United States of America (update on St. Louis encephalitis)
• 24 September 1999
  1999 - Polio in Iraq
• 14 September 1999
  1999 - St. Louis encephalitis in the United States of America . Update
• 14 September 1999
  1999 - Cholera in Sierra Leone
• 10 September 1999
  1999 - St. Louis Encephalitis in the United States
• 8 September 1999
  1999 - Cholera in Somalia - Update 2
• 7 September 1999
  1999 - Cholera in Afghanistan - Update
• 2 September 1999
  1999 - Cholera in Ghana
• 30 August 1999
  1999 - Haemorrhagic fever in Kosovo
• 25 August 1999
  1999 - Polio in Afghanistan
• 9 August 1999
  1999 - Cholera, in Madagascar
• 6 August 1999
  1999 - Cholera in Niger
• 4 August 1999
  1999 - Suspected haemorrhagic fever in Germany
• 3 August 1999
  1999 - Cholera in Niger
• 27 July 1999
  1999 - Plague in Malawi
• 26 July 1999
  1999 - Crimean-Congo haemorrhagic fever, Russian Federation (update)
• 20 July 1999
  1999 - Cholera in Afghanistan
• 14 July 1999
  1999 - Malaria in Kenya
• 14 July 1999
  1999 - Shigella in Guinea
• 25 June 1999
  1999 - Malaria in Burundi
• 23 June 1999
  1999 - Cholera outbreaks
• 16 June 1999
  1999- Cholera in Zambia
• 28 May 1999
  1999 - Viral haemorrhagic fever/Marburg in the Democratic Republic of the Congo - Update 8
• 21 May 1999
  1999 - Cholera in Cambodia
• 20 May 1999
  1999 - Viral haemorrhagic fever/Marburg in the Democratic Republic of the Congo - Update 7
• 18 May 1999
  1999 - Sylvatic yellow fever in South America
• 18 May 1999
  1999 - Viral haemorrhagic fever/Marburg in the Democratic Republic of the Congo - Update 6
• 17 May 1999
  1999 - Suspected viral haemorrhagic fever in the Democratic Republic of the Congo - Update 5
• 14 May 1999
  1999 - Suspected viral haemorrhagic fever in Zimbabwe
• 12 May 1999
  1999 - Meningococcal disease in Sudan - Update 4
• 12 May 1999
  1999 - Suspected viral haemorrhagic fever in Democratic Republic of Congo - Update 4
• 12 May 1999
  1999 - Cholera in Nigeria
• 11 May 1999
  1999 - Plague in Namibia
• 10 May 1999
  1999 - Suspected viral haemorrhagic fever in Democratic Republic of Congo - Update 3
• 7 May 1999
  1999 - Hendra-like virus in Malaysia and Singapore
• 6 May 1999
  1999 - Marburg disease in Democratic Republic of Congo - Update 2
• 5 May 1999
  1999 - Suspected viral haemorrhagic fever in Democratic Republic of Congo - Update
• 30 April 1999
  1999 - Cholera in Somalia - Update
• 30 April 1999
  1999 - Acute haemorrhagic fever syndrome in the Democratic Republic of Congo
• 30 April 1999
  1999 - Acute diarrhoea in Sudan
• 29 April 1999
  1999 - Relapsing fever (previously reported as acute haemorrhagic fever syndrome) in southern Sudan - Update
• 28 April 1999
  1999- Meningococcal disease in Sudan - Update 3
• 28 April 1999
  1999- Polio in Angola
• 20 April 1999
  1999 - Acute haemorrhagic fever syndrome in southern Sudan - Update
• 15 April 1999
  1999 - Hendra-like virus (Nipah virus) in Malaysia - Update
• 14 April 1999
  1999 - Cholera in Madagascar
• 14 April 1999
  1999 - Meningococcal disease in Guinea-Bissau - Update 2
• 13 April 1999
  1999 - Influenza A(H9N2) in Hong Kong Special Administrative Region (SAR) and China - Update
• 8 April 1999
  1999 - Cholera in Brazil
• 7 April 1999
  1999 -Acute haemorrhagic fever syndrome in southern Sudan
• 7 April 1999
  1999 - Influenza A(H9N2) in Hong Kong Special Administrative Region of China (SAR)
• 6 April 1999
  1999 -Single isolation of H5N1 influenza virus in a goose, Hong Kong Special Administrative Region of China - Update
• 29 March 1999
  1999- Single isolation of H5N1 influenza virus in a goose, Hong Kong Special Administrative Region of China
• 26 March 1999
  1999 - Acute watery diarrhoea in Sudan
• 26 March 1999
  1999 - Epidemic Encephalitis in Malaysia
• 22 March 1999
  1999 - Janpanese Encephalitis and Hendra-like Viurs in Malaysia
• 22 March 1999
  1999- Meningococcal disease in Guinea-Bissau - Update
• 19 March 1999
  1999 -Yellow fever in Brazil- Update
• 19 March 1999
  1999- Meningococcal disease in Ethiopia
• 18 March 1999
  1999 - Meningococcal disease in Senegal
• 18 March 1999
  1999 - Legionellosis in Netherlands
• 17 March 1999
  1999 - Yellow fever in Bolivia - Update
• 17 March 1999
  1999 - Yellow fever in Brazil
• 17 March 1999
  1999 - Diarrhoeal disease/cholera in Congo
• 12 March 1999
  1999 - Meningococcal disease in Sudan - Update 2
• 1 March 1999
  1999- Acute respiratory infection in Afghanistan, Update
• 26 February 1999
  1999 - Cholera in Africa
• 26 February 1999
  1999 - Meningococcal meningitis in Guinea-Bissau
• 24 February 1999
  1999 - Unidentified disease in Afghanistan
• 12 February 1999
  1999- Cholera in Somalia
• 11 February 1999
  1999 - Yellow fever in Bolivia
• 10 February 1999
  1999 - Rift Valley Fever in South Africa
• 27 January 1999
  1999 - Cholera in Zambia
• 22 January 1999
  1999 - Meningococcal meningitis in Sudan - Update 1
• 20 January 1999
  1999 - Cholera in Kenya
• 12 January 1999
  1999 - Meningococcal meningitis in Sudan
• 6 January 1999
  1999 - Influenza in China