Nikkei reported on the Biden administration’s alleged moves to mandate all foreign visitors to be vaccinated against COVID-19, noting that Japan does not plan to ease its 14-day quarantine requirement even for vaccinated visitors due to opposition from the Health Ministry, which is reportedly concerned about breakthrough infections. The daily also said LDP and opposition lawmakers are cautious about relaxing infection prevention protocols at the border ahead of the general election in the autumn. With regard to the U.S.’s alleged vaccination requirement for visitors, Japanese companies are worried that their employees who choose to receive vaccines not authorized by U.S. health authorities may be barred from entering the U.S.