The research, carried out by specialist consultants Oxera and Edge Health, shows that governments are unable to use travel restrictions and testing quickly enough to limit the spread of new, more infectious variants.
MAG and Airlines UK have submitted the findings of the latest study to ministers ahead of the next review on international travel restrictions, which is due to take place during the next week.
The two organisations are calling for the government to scrap the remaining requirement for a post-arrival lateral flow test in the UK.
