The woman had bought a duck at a live market, and meat samples were positive for H10N5.
The NIH is investing $515 million more in its long COVID research program.
The patient is the brother of a boy who recently died from an H5N1 infection.
The latest case, which was fatal, marks the third of 2024.
Sporadic infections will likely continue, especially in areas where H5N1 is still endemic in poultry.
The new center in Tokyo will support collaboration to better prevent, detect, and respond to public health threats in the region.
The pace of outbreaks in poultry has slowed dramatically since December.
Though H10 viruses have infected humans before, the woman's illness marks the first known case involving H10N5.
The virus was confirmed in gentoo penguins, with a suspected detection in king penguins from another location in the region.
The country has now confirmed 8 such cases since early 2023.