It is possible that a few cases of the new strain will be reported, especially as the first two known cases, a couple, had no known travel history, meaning that they acquired the disease from community spread. It usually takes around three days for tests to produce results.
Japan registered first cases of the new coronavirus strain on Friday.
The nationwide halt of the campaign is estimated to cause a loss of 318.7 billion yen ($308 billion) in potential spending through January 3, with the nation observing a 73 percent drop in the number of travelers from past year due to the pandemic, according to JTB Tourism Research and Consulting Co.
The health ministry also said there are now 659 patients considered severely ill being assisted with ventilators or treated in intensive care units.
Japan on Saturday declared it will ban non-resident foreign nationals after it detected the new variant of the virus from Britain.
The suspension will begin on Monday and run until the end of January, Kyodo News reported, citing government officials.
Tokyo virus cases hit record 949 ahead of New Year holiday
Madrid deputy health chief Antonio Zapatero said, the infections - all in Madrid - were linked to recent United Kingdom travel. Additionally, there are a small number of people who have already been tested, but whose results are not yet known.
The country has experienced a surge that now includes the new, fast-spreading strain.
However, business people and students from countries and regions including China, Thailand, Vietnam and South Korea, which have special schemes to ease travel restrictions with Japan, will not be affected by the policy.
The new restrictions will be implemented on December 28., the government said in a statement.
In Japan, eight people have so far been confirmed as having been infected with the new variant.
Tokyo has already barred entry to foreign nationals who have recently been to Britain and South Africa.
The new variant has also been detected in a man who visited the United Kingdom and a family member - the first cases of infected people found outside airport checks - Nippon TV reported on Saturday. She has been hospitalized since last Tuesday and no one had close contact with her.