www.cad.gov.rs – Direktorat civilnog vazduhoplovstva Republike Srbije
www.zdravlje.gov.rs - Ministarstvo zdravlja Republike Srbije     
www.who.int  - WHO - World Health Organization
www.euro.who.int › Health topics - WHO Europe
www.icao.int/safety/aviation-medicine/Pages/healthrisks.aspx - ICAO - International Civil Aviation Organization
www.capsca.org/CAPSCARefs.html;  ICAO - Cooperative Arangement for the Prevention of Spread of Communicable Disease Trough Air Travel (CAPSCA)
www.iata.org/whatwedo/safety/health/Pages/diseases.aspx  - IATA – International Air transport Association
www.cdc.gov - Centers for Disease Control and Prevention, USA