In the week since a line of Japanese health supplements began being recalled, five people have died and more than 100 people were hospitalized as of Friday.

Osaka-based Kobayashi Pharmaceutical Co. came under fire for not going public quickly with problems known internally as early as January. The first public announcement came March 22.

Company officials said 114 people were being treated in hospitals after taking products, including Benikoji Choleste Help meant to lower cholesterol, that contain an ingredient called benikoji, a red species of mold. Earlier in the week, the number of deaths stood at two people.

Some people developed kidney problems after taking the supplements, but the exact cause was still under investigation in cooperation with government laboratories, according to the manufacturer.