A 60-year-old man who arrived at Narita Airport from the Philippines in February was infected with the novel coronavirus variant, the Ministry of Health, Labor and Welfare said Wednesday.
Japanese media say the virus poses the same level of threat as mutated strains found in Britain, South Africa and Brazil.
This is the first reported case of the mutant novel coronavirus found in the Philippines in Japan, the health ministry said.
The man is asymptomatic.