Kyodo News quoted government sources as saying that Japan recorded the first case of infection caused by the Omicron variant.
On November 29, Japanese Minister of Health, Labour and Welfare Goto Shigeru said that on November 29, a tourist from Namibia (a country in southern Africa) tested positive for SARS-CoV-2 at Narita Airport. On November 28, the authorities stated that further testing is needed to determine whether this is a variant case of Omicron.
On November 30, Kyodo News quoted a government source as saying that Japan recorded the first case of Omicron infection, which is probably the aforementioned case in Namibia.
On the same day, Japan officially closed its borders to foreigners for one month to prevent the entry of Omicron variants.
In addition, if Japanese and people living in Japan return confirmed cases from 14 countries and regions, Japan will strictly implement quarantine measures in the quarantine area designated by the government. The disease was diagnosed. In addition to the nine countries currently designated as quarantined (such as South Africa), variants of Omicron have also been infected.
Prior to this, on November 28, Japan’s National Institute of Infectious Diseases (NIID) raised Omicron’s alert level to the highest level. NIID categorizes Omicron together with Delta variants as “variants of interest”.
The World Health Organization (WHO) classified Omicron as a “variant of concern” after discovering that Omicron has more mutant proteins than Delta.
Before the new development, the Tokyo stock market fell for the third consecutive trading day on November 30. The Nikkei Index closed at its lowest level on the 7-10 day (down 462.16 points, or 1.63%), due to concerns about the effectiveness of existing vaccines against new variants. .