The data, compiled by research consultancy Edge Health and Oxera, claims the testing measures are only effective if they are introduced within a day of the strain first arriving in the UK.
The research further states that any subsequent travel restrictions likely only "delays the peak" of a new variant by two to eight days.
Each additional day after the variant arrives reduces the impact to the point that, by day six, it only holds back the peak by a day.
It took 16 days for the UK to react to the Omicron variant after it had already arrived, suggesting any tests would only be introduced long after they could have any effect in delaying the peak of the variant.
