9 Monkeys Died in 2 Days at a Zoo, Officials Revealed What Killed Them

Mar. 15, 2025

monkeys in a cage in China — stock image.Photo:Getty

9 Monkeys Died in a Zoo, Officials Revealed What Killed Them

Getty

A cause of death has been determined fornine monkeyswho died over two days in a Hong Kong zoo earlier this week, officials have announced.

The primates at Hong Kong Zoological and Botanical Gardens contracted melioidosis, Kevin Yeung, secretary for Culture, Sports and Tourism, said in a press briefing on Friday, Oct. 18,CBS Newsreported.

De Brazza’s monkey — stock image.Getty

9 Monkeys Died in a Zoo, Officials Revealed What Killed Them

The Centers for Disease Control and Prevention (CDC) defines melioidosis as “a bacterial infection in people and animals” that “is spread through contact with contaminated soil, air, or water.”

Yeung added that the melioidosis, which likely was the result of work done near their cages that involved digging, caused the monkeys to develop sepsis.

The zoo had been working to repair irrigation pipes under flower beds near their cages earlier in the month.

According to both CBS News and theAssociated Press, the first eight monkeys died on Sunday, Oct. 13. The following day, another died after exhibiting strange behavior.

A Cotton-Top Tamarin in Rome, Italy — stock image.Getty

A Cotton-Top Tamarin (Tamarino Edipo) is seen at Rome Bioparco on July 18, 2024

The nine deceased monkeys included one De Brazza’s monkey — an Old World monkey endemic to the riverine and swamp forests of central Africa, a common squirrel monkey — which are native to tropical areas in South America, three cotton-top tamarins — a New World monkey considered to be one of the smallest primates, and four white-faced sakis.

Never miss a story — sign up forPEOPLE’s free daily newsletterto stay up-to-date on the best of what PEOPLE has to offer​​, from celebrity news to compelling human interest stories.

Cotton-top tamarins “are one of the most endangered species of primates in the world,” with less than 6,000 remaining in the wild, per theSmithsonian’s National Zoo and Conservation Biology Institute.

CBS and AP News added that another De Brazza’s monkey had shown changes in its behavior and appetite, but was in stable condition as of Friday.

Officials also said the chance for humans to become sick from the melioidosis outbreak was low.

The Hong Kong Zoological and Botanical Gardens opened in 1871, and is the oldest park in the former British colony.

source: people.com