Two Sumatran tigers at an Indonesian zoo are recovering after testing positive for coronavirus.

Officials at Ragunan Zoo in Jakarta have launched an investigation into how Tino, who is nine years old, and Hari, 12, became infected.

Both tigers had displayed flu-type symptoms, experienced difficulty breathing and had lost their appetite after they tested positive for COVID-19 in mid-July.

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Following about 10 to 12 days of treatment under close observation, officials said the tigers were showing signs of recovery.

Jakarta’s head of the Parks and City Forest Office, Suzi Marsitawati, said: “Their appetites have returned and they are back to being active.”

She said authorities were now trying to find out how the tigers became infected.

“When the animals started to show symptoms, the Ragunan Zoo was already closed due to emergency mobility restrictions.”

None of the caretakers and workers had tested positive with coronavirus around the time the animals were infected, she added.

Indonesia has suffered the worst COVID-19 infection rate in southeast Asia with over 3.4 million cases and more than 94,000 deaths since the start of the pandemic.

It comes just days after it was revealed that a male snow leopard tested positive for COVID-19 at San Diego Zoo in California.

Caretakers noticed that the nine-year-old animal, called Ramil, was struggling with a cough and a runny nose.

Zoo staff tested a stool sample which confirmed Ramil had COVID-19 and he was placed into isolation alongside a female snow leopard and two Amur leopards with which he shares an enclosure.

Unlike other big cats and apes at the zoo, Ramil had not been vaccinated against the virus, but was said to be “doing well” by staff.

In January, eight gorillas at sister facility the San Diego Zoo Safari Park became infected with COVID-19 in the first known case of the virus spreading to apes.

It led to an experimental vaccine being administered to species deemed most at risk from COVID following a request from the zoo.

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