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Sanctuary Begins Health Checks for 60 Hepatitis-B Chimps

9/5/2026

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Summary

Story summary

Humane World for Animals is conducting health checks on former hepatitis-B research chimpanzees.
More than 400 West African chimps participated in U.S. hepatitis-B vaccine trials from the 1970s to early 2000s.
Sanctuary director Liliana Pacheco Ricote said Humane World assumed permanent care for 60 chimps in 2015.
Veterinarian Belen Perez Hernando performed dental cleaning, X-rays, blood tests, boosters, nail trims and pedicures under anesthesia.

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Story summary

Humane World for Animals is conducting health checks on former hepatitis-B research chimpanzees.
More than 400 West African chimps participated in U.S. hepatitis-B vaccine trials from the 1970s to early 2000s.
Sanctuary director Liliana Pacheco Ricote said Humane World assumed permanent care for 60 chimps in 2015.
Veterinarian Belen Perez Hernando performed dental cleaning, X-rays, blood tests, boosters, nail trims and pedicures under anesthesia.