Wild monkeys with herpes in Central Florida: Population on the verge of doubling

VIDEO: Wild monkeys with herpes in Central Florida: Population on the verge of doubling

MARION COUNTY, Fla. — A population of monkeys that lives in Silver Springs State Park, carrying a herpes virus that is deadly to humans, could double in the next few years.

The troop of rhesus macaques were brought to Central Florida in the 1930s as part of a long-since closed attraction in the park. They were placed on a small island, but the monkeys didn’t stay there.

There have been monkey sightings all over Central Florida, including one caught on camera in 2015 when students spotted a rhesus macaque running around on the roof of their school in The Villages.

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The monkeys carry a herpes virus that is deadly to humans and can be spread through a bite or scratch.

“People should never approach these animals,” said University of Florida professor Steve Johnson, who was part of a team that spent years studying the monkeys. “People shouldn’t feed them. It’s not legal to feed them anymore.”

Researchers estimate the monkey population in Silver Springs is around 200.




“By the year 2022, there are probably going to be around 400 animals,” Johnson said.

Johnson said at some point, the state will be forced to decide what to do with the animals.

“Remove the animals from the environment … [or] remove the animals, sterilize the females and put them back,” said Johnson, admitting the second option could be expensive and dangerous for those who have to capture the monkeys -- and, in the end, may not make much of a difference.

“It’s going to be a problem … Continual growth of that population is going to occur without intervention,” Johnson said.

No human deaths have been reported from contracting McHV-1 from free-ranging macaques, suggesting the risk for transmission from these animals is low, the Centers for Disease Control and Prevention said.

But the agency said "immunologic surveillance, reporting and diagnostic investigations in humans are lacking."