Every year between May and June enterovirus infections reach their peak. This extremely contagious virus puts fear in the hearts of parents with children aged 5 and below, a high-risk group for complications. On Tuesday, a subsidiary of vaccine manufacturing giant Adimmune provided some good news: its new EV-71 vaccine with a 99.21% effectiveness rate will hit the market in 2025.

Adimmune subsidiary Enimmune held a press conference on Tuesday to announce the unblinded results of its Phase III clinical trials for a vaccine against enterovirus 71.

Vic Chang
Enimmune
Around the world we’ve done clinical trials in many countries and many different medical centers. Now the main topic for today is about the unblinded results of our clinical trial. So the effectiveness reached 99.21%, making it extremely effective. As for the protection it provides, it’s more effective than all the products that are currently for sale on the market.

Enterovirus is a contagious virus that often infects children. Infections peak in May or June every year, and the virus spreads by fecal–oral transmission and airborne transmission. Most people who are infected have symptoms like a mild fever or mouth ulcers. EV-71 is considered the most dangerous enterovirus, as it has a high mortality rate. In the past, the most effective vaccine on the market was Medigen’s, with an effectiveness of 96.8%.

Vic Chang
President of Enimmune
We’ll still be taking our vaccine to many countries that’ll need it, which includes countries in Southeast Asia, China and countries in Northeast Asia, an area that’s currently in the middle of an enterovirus epidemic period. As for the quantity for Taiwan, starting from right now we’ll have a smaller amount available, but next year we’ll substantially increase the numbers.

Enimmune currently has about 50,000 doses of the EV-71 vaccine, but by next year it’ll mass-produce the vaccine so that over 100,000 doses will be available. Anticipating that in 2026 it’ll receive medical approval from Vietnam, the subsidiary pharma company has its sights set on the newborn market in countries throughout Southeast Asia.

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