Sixteen passengers flying into Copenhagen Airport on a Pakistan International Airlines (PIA) flight were found to be infected with COVID-19. The flight happened on June 6th and had arrived from Islamabad International Airport, simplyflying.com reported on Sunday.

Altogether, flight number PK8771 there were 318 passengers on board. According to the Danish Patient Safety Agency, at present, a total of 18 people have an infection in relation to the trip. For Denmark, this figure is a lot as it is currently reporting less than 50 cases a day.

Of the 18 infected, 16 were on board the aircraft, while two people were in close contact with the passengers but were not on board. Moreover, four people are believed to have been contagious at the time they were on board the aircraft.

The Danish Patient Safety Board has contacted all relevant persons. However, the authority states that it can’t rule out that there are several cases of infection related to air travel.

Anette Lykke Petri, the chief medical officer and chief executive officer of the Danish Patient Safety Authority, spoke about how crucial it is to follow best practices in the current climate.

According to the document shared by the authority, Petri said: “The case clearly illustrates that it is incredibly important that we continue to look after ourselves and each other by following the recommendations to keep distance, have good hygiene and let us test.”

The Danish Broadcasting Corporation recommends that all passengers who have been on board the aircraft should pay special attention to coronavirus symptoms.

If a traveller suspects that they have an infection, they should isolate and book a time for a test or contact a doctor. However, it is important that they do not see a doctor without prior notice. Nonetheless, Danish authorities strongly call for incoming passengers to isolate for 14 days.

Altogether, this case highlights the need for consistent hygiene measures in place across the nations, especially when it comes to travel. Authorities, airports, and airlines are all introducing different policies when it comes to tackling the virus. Therefore, incidents such as this month’s are likely to repeat.

Simple Flying reached out to Pakistan International Airlines (PIA) for comment on the incident but did not hear back before publication.