TAIPEI (Taiwan News) — The Centers for Disease Control on Monday reported 13 influenza-related deaths over the last week, and over 85% of influenza-related cases over the past six months were among the unvaccinated.

CDC Deputy Director Li Chia-lin (李佳琳) told reporters at a Tuesday press conference that the deaths included a central Taiwan man in his 30s with a history of heart disease, per CNA. Li said there were approximately 115,000 emergency department visits for influenza-like illnesses between Feb. 23 and Saturday.

Li said there were also 64 severe cases, mostly caused by H1N1 infections, which is also known as Influenza A. She said that between October and March, there were 1,063 severe influenza cases and 217 related deaths.

Lin said 85% to 88% of those who died who contracted or died from the virus were unvaccinated this season. CDC Spokesperson Tseng Shu-hui (曾淑慧) said hospital visits for influenza fell by 17% from the previous week, but the center predicts transmission risk remains as reports of severe cases are high.

Tseng said that around 10,000 doses of the extra 100,000 influenza vaccines purchased in early February remain, and most have been booked. Demand for influenza vaccines spiked in February after celebrity Barbie Hsu's (徐熙媛) death due to a flu-related illness.

Tseng said the additional vaccines are expected to be used up this week. She said 6.67 million influenza vaccines have been administered this season.