Austria and Israel have reportedly become the first two countries to impose a time limit on the validity of vaccinations, unless travellers have boosted their immunity with follow-up doses.
Vaccinated travellers will have to abide by Austria’s entry rules for unvaccinated arrivals unless they have had a booster within 360 days of their second dose - which means they will have to pay for a Covid test to enter.
Israel will only allow visits if holidaymakers leave the country no more than 180 days after their second dose, the Telegraph reported.
