Alarm bells ring in Japan as experts warn of fast-spreading new Covid variant KP. 3

The KP. 3 variant is spreading rapidly, even among those who are vaccinated or have recovered from previous infections, according to Kazuhiro Tateda, president of the Japan Association of Infectious Diseases.

“It is, unfortunately, the nature of the virus to become more resilient and resistant each time it changes into a different form,” Tateda told This Week in Asia. “People lose their immunity quite quickly after being vaccinated, so they have little or no resistance.”

Tateda, who sits on Japan’s advisory panel formed at the start of the pandemic, said the coming weeks will be critical as authorities monitor the variant’s spread and impact.

While hospitals have reported a sharp uptick in Covid-19 admissions, Tateda said he is “relieved that not many of these cases are severe”. Typical symptoms of the KP. 3 variant include high fever, sore throat, loss of smell and taste, headaches, and fatigue.

According to the health ministry, medical facilities across Japan logged a 1.39-fold – or 39 per cent – increase in infections from July 1 to 7, compared to the previous week.

Okinawa prefecture has been the hardest hit by the new strain of the virus, with hospitals reporting an average of nearly 30 infections per days. The KP. 3 variant has accounted for more than 90 per cent of Covid-19 cases nationwide, the Fuji News Network reported, leading to renewed concerns about bed shortages at medical facilities.

Since Japan’s first detected Covid-19 case in early 2020 involving a man who returned from the Chinese city of Wuhan, East Asian nation has recorded a total of 34 million infections and around 75,000 related deaths. The country’s Covid-19 caseload peaked on August 5, 2022, when more than 253,000 people were receiving treatment.

Japa