Advisory Bulletins

Transmission of Communicable Diseases

Montreal, 24 January 2020 – The recent coronavirus disease (COVID-19) outbreak is of considerable concern to the aviation industry.

For airport operators, the main aims are to protect the health and welfare of travellers, staff and the public, and to reduce the opportunities for dissemination of communicable diseases.

In the coming days and weeks, ACI expects to see national regulators and health authorities react to the spread of the virus by introducing measures directly affecting aviation and more broadly.

This advisory bulletin is addressed to ACI members and reiterates a number of options and best practices that airports and national authorities can use to protect against communicable diseases that might pose a serious risk to public health.

The recommendations are designed to reduce exposure to an infectious agent at airports and to improve the response to health-related emergencies by establishing mechanisms for rapid decision-making and action. They are intended as guidance, not to be adopted as written, but to be modified to the local situation as necessary. They are not specific to the coronavirus outbreak.

Not all of the measures identified would be the responsibility of the airport; but can be used in discussion with local authorities and national regulators when determining appropriate actions. The top priority should be to agree responsibility and accountability for measures between the airport and the relevant authority.

From an operational perspective, ACI is committed to assisting airports. Airport members are advised to refer to the following guidelines as necessary, that can be found in the Airport preparedness guidelines for outbreaks of communicable disease.

To keep updated on the latest news on the coronavirus outbreak, ACI recommends the website maintained by the World Health Organisation (WHO) WHO Disease Outbreak News .


The responsibility for management of the risk of communicable diseases at airports rests primarily with the local/regional/national public health authority and the relevant airport operator. If more than one airport is operated by the same organisation, plans should be prepared for each airport, in line with the recommendations contained in this document.

Together with its national authorities, each airport operator can play its part towards achieving greater coordination of preparedness measures, the key to success in reducing the risk of spread of any communicable disease.

Airport preparedness plan should address aspects such as:

  1. communication (especially with the public)
  2. screening
  3. logistics (transport of travellers to health facilities)
  4. equipment
  5. entry/exit controls, and
  6. coordination with the local/regional/national public health

A particularly important requirement is for adequate supplies of appropriate personal protective equipment (including hand-washing facilities or sanitising gels) to be available for airport staff.


Good communication is the key to effective emergency response. Attention should be given to airport employees, as well as to others working at the airport who may not be employed directly by the airport operator (e.g. contractors and sub-contractors, and to the non-travelling public).

Furthermore, the International Health Regulations (2005) refers to the role of competent authorities1 at airports with respect to ensuring that facilities for travellers are maintained in a sanitary condition and that goods being transported through airports are kept free of sources of infection or contamination.

Communication links should be established with the following entities:

a) Internal

  • airlines
  • handling agents
  • air traffic management
  • local hospital(s)

1 Guidance on the role of the competent authorities at airports is given in the International Health Regulations (2005).

  • airport medical service providers
  • emergency medical services
  • police
  • customs
  • immigration
  • security
  • airport retailers
  • information/customer relations services
  • other stakeholders as necessary

b) External

  • Local/regional/national public health authority
  • Travellers (before reaching the airport / in the terminal building)
  • Other airports in same and outside State/region
  • Travel agents and hotel associations
  • Tourism organizations
  • International organizations involved with migration
  • Media

Communication with departing travellers in the event of a communicable disease outbreak

Travellers and health professionals should have access to consistent information about postponing travel and about screening measures that may be in place at an airport, should a potential traveller have an illness prior to considering air travel. Such information will usually be taken from a public health information site or developed in close collaboration with the public health authority.

Before arrival at the airport terminal building, information can be provided to travellers by means of an airport (and airline) web site (or by electronic link to a public health web site), by recorded telephone message or by printed media. A telephone message may give health information directly and possibly refer the listener to further sources of information.

The media can play a useful role in informing travellers of the situation at an airport and links with the media should be established so that journalists can obtain information at short notice. Notices on social media, radio and television stations and public information be very effective.

When in the airport, information can be given by signage, stands, posters or electronic displays, and by public address. The text would be adjusted according to the information to be conveyed. The WHO or national public health authority will provide the information on symptoms.

Public announcements, and other forms of communication, should be provided in the languages used by persons most frequently travelling through the airport, including English, as well as the State’s own language(s).

To ensure public confidence, airport operators should explain to passengers, as fully as possible, the reasons for any necessary health-related measures.


Screening for communicable diseases can potentially reduce opportunities for transmission and forestall or delay international spread2. Screening of arriving and departing travellers at international airports may be considered depending on various factors, including the epidemiology and extent of transmission, severity of the disease and cost factors. If a substantial proportion of transmission of a communicable agent occurs during the incubation period or during asymptomatic infection, the impact of health screening on reducing international spread will be diminished. This may be the case with coronavirus, but airports should follow local requirements.

Screening measures that match the behaviour of the communicable disease in question have the greatest chance of reducing the number of cases and limiting or, if possible, preventing international spread.

A range of screening methods is available, including visual inspection, questionnaire and temperature measurement (using thermal scanners or other suitable methods). The selection of the most appropriate screening method will be determined by the transmission characteristics, associated illness patterns and the risk groups affected.

Details of requirements cannot always be determined in advance of an outbreak.

If the public health authority determines that screening is to be employed, it should discuss the issues with the airport operator in order to develop acceptable plans. Costs associated with providing screening equipment and airport space and infrastructure support would normally be met by the public health authority.

Travellers determined at screening to be at increased risk of having a communicable disease posing a potentially serious public health risk should undergo secondary screening by a medical practitioner.


  1. State regulations supersede the information contained in this advisory where applicable.
  2. According to the World Health Organization (WHO)


Members can contact:

Airports Council International (ACI), the trade association of the world’s airports, was founded in 1991 with the objective of fostering cooperation among its member airports and other partners in world aviation, including the International Civil Aviation Organization, the International Air Transport Association and the Civil Air Navigation Services Organization. In representing the best interests of airports during key phases of policy development, ACI makes a significant contribution toward ensuring a global air transport system that is safe, secure, efficient and environmentally sustainable. As of January 2020, ACI serves 668 members, operating 1979 airports in 176 countries