1998

• 23 December 1998
  1998 - Influenza in China
• 22 December 1998
  1998 - Yellow fever in Burkina Faso
• 22 December 1998
  1998 - Meningitis in Democratic Republic of Congo
• 18 December 1998
  1998 - Cholera/acute diarrhoea in Somalia
• 4 December 1998
  1998 - food poisoning in northern Mozambique
• 2 December 1998
  1998 - Hurricane Mitch, Update 8
• 26 November 1998
  1998 - Hurricane Mitch, Update 6
• 25 November 1998
  1998 - Cholera in Brazil
• 25 November 1998
  1998 - Cholera in Sri Lanka
• 24 November 1998
  1998 - Hurricane Mitch, Update 5
• 23 November 1998
  1998 - Hurricane Mitch, Update 4
• 11 November 1998
  1998 - Hurricane Mitch, Update 3
• 10 November 1998
  1998 - Hurricane Mitch, update
• 10 November 1998
  1998 - Rift Valley fever in Mauritania
• 6 November 1998
  1998 - Plague in Uganda
• 6 November 1998
  1998 - Hurricane Mitch and epidemic risk
• 4 November 1998
  1998 - Yellow fever in Venezuela
• 26 October 1998
  1998 - Cholera in Sulaimania governorate in northern Iraq
• 23 October 1998
  1998 - Cholera in Russian Federation
• 22 October 1998
  1998 - Yellow fever in Brazil, Update
• 22 October 1998
  1998 - Suspected pneumonia in Sudan
• 22 October 1998
  1998 - Cholera in the Great Lakes Region
• 16 October 1998
  1998 - Cholera in Somalia
• 15 October 1998
  1998 - Cholera in Cameroon
• 14 October 1998
  1998 - Cholera in West Africa
• 30 September 1998
  1998 - Diarrhoeal diseases in Bangladesh
• 23 September 1998
  1998 - Cholera in Sierra Leone
• 22 September 1998
  1998 - Cholera - Vibrio cholerae O139 strain
• 21 September 1998
  1998 - Cholera in Uganda - Update
• 21 September 1998
  1998 - Typhoid fever in Kyrgyzstan
• 11 September 1998
  1998 - Cholera, Armenia
• 9 September 1998
  1998 - Cholera, Comoros (update)
• 2 September 1998
  1998 - Cholera in Afghanistan, Update 2
• 31 August 1998
  1998 - Cholera in Bhutan
• 26 August 1998
  1998 - Yellow fever in Brazil
• 24 August 1998
  1998 - Meningococcal meningitis in Angola, Update
• 21 August 1998
  1998 - Cholera in Afghanistan, update
• 19 August 1998
  1998 - Cholera in Asia.
• 19 August 1998
  1998 - Cholera in Afghanistan
• 18 August 1998
  1998 - Dengue in Asia
• 14 August 1998
  1998 - Cholera in Mozambique, Update
• 13 August 1998
  1998 - Legionellosis in Paris, France
• 11 August 1998
  1998 - Anthrax, Russian Federation
• 6 August 1998
  1998 - Meningococcal Meningitis in Angola
• 3 August 1998
  1998 - Cholera/diarrhoea outbreak in Liberia
• 20 July 1998
  1998 - Cholera in Uganda
• 15 July 1998
  1998 - Cholera in Cambodia
• 4 July 1998
  1998 - Enterovirus Outbreak in Taiwan, China - update no. 2
• 3 July 1998
  1998 -cholera - European Commision lifts ban on East African fresh fish imports
• 17 June 1998
  1998 - Enterovirus Outbreak in Taiwan, China - Update No.1
• 8 June 1998
  1998 - Dengue
• 28 May 1998
  1998 - Malaria in the United Republic of Tanzania.
• 19 May 1998
  1998 - Malaria in the United Republic of Tanzania.
• 19 May 1998
  1998 - Cholera in the Democratic Republic of the Congo
• 19 May 1998
  1998 - Cholera in Rwanda
• 8 May 1998
  1998 - Crimean-Congo haemorrhagic fever in Afghanistan
• 8 May 1998
  1998 - Crimean-Congo haemorrhagic fever in Pakistan
• 29 April 1998
  1998 - Bloody diarrhoea in Cameroon
• 22 April 1998
  1998 - Meningitis in Chad
• 15 April 1998
  1998 - Dengue and Dengue Haemorrhagic Fever in Malaysia
• 7 April 1998
  1998 - Cholera in Uganda
• 7 April 1998
  1998 - Cholera in Zimbabwe
• 31 March 1998
  1998 - Cholera in Latin America and El Niño
• 16 March 1998
  1998 - Cholera in the Comoros Islands - Update 2
• 12 March 1998
  1998 - Influenza A(H5N1) in Hong Kong - Update 9
• 10 March 1998
  1998 - Cholera in the Comoros Islands
• 25 February 1998
  1998 - Cholera in Peru
• 20 February 1998
  1998 - Cholera in the Comoros Islands - Update
• 20 February 1998
  1998 - Cholera in Mozambique - Update 2
• 19 February 1998
  1998 - Influenza
• 13 February 1998
  1998 - Dengue haemorrhagic fever in Cambodia
• 10 February 1998
  1998 - Cholera in Mozambique - Update
• 10 February 1998
  1998 - Cholera in the Congo
• 3 February 1998
  1998 - Cholera-like diarrhoeal disease in the Congo
• 3 February 1998
  1998 - Cholera in Mozambique
• 28 January 1998
  1998 - Meningitis in Democratic Republic of the Congo
• 20 January 1998
  1998 - Influenza A(H5N1) in Hong Kong - Update 8
• 19 January 1998
  1998 - Influenza A(H5N1) in Hong Kong - Update 7
• 16 January 1998
  1998 - Rift Valley Fever in Kenya and Somalia - Update 2
• 15 January 1998
  1998 - Influenza A(H5N1) in Hong Kong - Update 6
• 14 January 1998
  1998 - Influenza A(H5N1) in Hong Kong - Update 5
• 14 January 1998
  1998 - Rift Valley fever in Kenya - Update
• 13 January 1998
  1998 - Influenza A(H5N1) in Hong Kong - Update 4
• 12 January 1998
  1998 - Cholera in Chile
• 12 January 1998
  1998 - Influenza A(H5N1) in Hong Kong - Update 3
• 9 January 1998
  1998 - Health conditions for travellers to Saudi Arabia - Pilgrimage to Mecca (Hajj)
• 9 January 1998
  1998 - Influenza A(H5N1) in Hong Kong - Update 2
• 9 January 1998
  1998 - Cholera in Africa
• 7 January 1998
  1998 - Cholera in the United Republic of Tanzania (including Zanzibar)
• 7 January 1998
  1998 - Influenza A(H5N1) in Hong Kong - Update
• 6 January 1998
  1998 - Cholera outbreak in the Democratic Republic of Congo
• 6 January 1998
  1998 - Rift Valley fever in Kenya
• 5 January 1998
  1998 - Influenza A(H5N1) in Hong Kong
• 20 February 1997
  1997 - Influenza vaccine for 1997-1998 season