Protective measures against the coronavirus COVID-19

Travel bans to affected areas or denial of entry to passengers coming from affected areas are usually not effective in preventing the importation of cases but may have a significant economic and social impact. Since WHO declaration of a public health emergency of international concern in relation to COVID-19, and as of 27 February, 38 countries have reported to WHO additional health measures that significantly interfere with international traffic in relation to travel to and from China or other countries, ranging from denial of entry of passengers, visa restrictions or quarantine for returning travellers. Several countries that denied entry of travellers or who have suspended the flights to and from China or other affected countries, are now reporting cases of COVID-19.