Treatment for Charlie the Koala
news
Updated on February 26, 2026
On February 12, 2026, a health checkup was conducted for Koala, a male koala (11 years old) kept at Tama Zoo.
As a result, lymphoma (*1) was suspected, and it was also found that the patient was infected with cryptococcus (*2).
On the morning of Saturday, February 21st, the animal was moved to a restricted area for health management and treatment, and medication was started.
Charlie is currently showing no symptoms and is eating eucalyptus well. We will continue to provide treatment tailored to Charlie's condition.
We would appreciate your continued support and encouragement.
※1
Lymphoma
Blood contains white blood cells, which are responsible for immune function.
Lymphoma (malignant lymphoma) is a disease in which lymphocytes, a type of white blood cell, become cancerous.
As an initial symptom, lumps may form in the lymph nodes in the neck, armpits, and groin.
Koala are known to develop lymphoma due to infection with a virus called "Koala retrovirus," and it is said that many koalas kept in captivity in Japan carry this virus.
Blood contains white blood cells, which are responsible for immune function.
Lymphoma (malignant lymphoma) is a disease in which lymphocytes, a type of white blood cell, become cancerous.
As an initial symptom, lumps may form in the lymph nodes in the neck, armpits, and groin.
Koala are known to develop lymphoma due to infection with a virus called "Koala retrovirus," and it is said that many koalas kept in captivity in Japan carry this virus.
※2
Cryptococcus
Cryptococcus is a type of mold (fungus).
It develops in individuals with weakened immune systems and can cause symptoms such as rhinitis, pneumonia, dermatitis, meningitis, and osteomyelitis.
Cryptococcus is a type of mold (fungus).
It develops in individuals with weakened immune systems and can cause symptoms such as rhinitis, pneumonia, dermatitis, meningitis, and osteomyelitis.
Charlie the Koala (photographed on February 25, 2026)
(February 26, 2026)