Health evaluations have been conducted on chimpanzees used in Hepatitis B vaccine trials at Liberia’s ‘Second Chance Chimpanzee Refuge.’ These assessments included examinations of their teeth, hearts, lungs, nervous systems, and blood. The chimpanzees also received booster vaccinations and nail trims. According to Human World for Animals, after the research program concluded in 2015, the responsibility for the 60 remaining chimpanzees was assumed by this permanent care organization. 20th Bhadra, Abuja (RASAS/AP).
Liliana Pacheco Rikote, director of the ‘Second Chance Chimpanzee Refuge’ in central Liberia, reported the completion of comprehensive health procedures for the chimpanzees, including teeth cleaning, X-rays, and nail clipping. She noted that from the 1970s through the early 2000s, over 400 chimpanzees had been used in Hepatitis B vaccine studies by American researchers in Liberia. Many of these animals were captured from the wild at a very young age.
Liberia hosts the second-largest population of chimpanzees in West Africa after Guinea. Due to a rapid decline in their numbers, the West African chimpanzee has been classified as a critically endangered species. Rikote explained that these chimpanzees had been the subjects of invasive research and had endured extensive testing and suffering over many years. According to Human World for Animals, the organization undertook the permanent care of the 60 remaining chimpanzees when the research program ended in 2015.
The chimpanzees are currently housed in a conservation center located on a group of mangrove-covered islands. The health assessments, performed under anesthesia, included thorough examinations from head to toe. The organization’s objective with these evaluations is to assess the long-term health conditions, detect early signs of disease, and develop customized care plans for each aging chimpanzee. The health checks involved testing their teeth, heart, lungs, nervous systems, and blood, along with administering booster shots and trimming nails. Plans are underway to conduct health assessments on the remaining chimpanzees as well.
Belen Perez Hernando, the conservation center’s veterinarian, emphasized that health evaluations are a vital part of caring for chimpanzees who have endured prolonged hardships and suffering. Currently, the chimpanzees’ average age ranges from 30 to 35 years. It is still premature to draw comprehensive conclusions about the long-term health impacts of past research on these animals. Rikote expressed satisfaction in giving these chimpanzees a second chance at a dignified life, acknowledging that the effects of their prior suffering remain observable.
