Calgary Zoo takes extra COVID-19 precautions with pregnant gorilla by limiting human contact

After two gorillas at the San Diego Zoo Safari Park tested positive for COVID-19, the Calgary Zoo says staff will tryto limit contact time with its pregnant gorilla,Yewande.

A statement posted on the Safari Park website said the gorillas were suspected of having contracted infection "from an asymptomatic staff member," despite employees following all COVID-19 safety precautions recommended by the U.S. Centers for Disease Control and Prevention.

It's believed to be the first known transmission of the virus to apes.

Doug Whiteside, a senior veterinarian at the Calgary Zoo, says he was surprised to hear the news.

"It obviously shows that despite our best precautions, sometimes the virus does get through," he said.

In the Calgary Zoo's case, Whiteside saysstaff undertook extra precautions early on.

"We actually had based our precautions based on the big cat experiences, the fact that a number of big cat species lions, tigers, snow leopards had contracted COVID."

"We're making sure that staff basically do a self-assessment each day before they come to work in terms of, you know, whether they're feeling ill or not," he said.

He says once staff arriveat the zoo, precautionsinclude sanitizing, frequent handwashingandwearing surgical masks and gloves when dealing with food prep or cleaning the animals' habitat.

"If they are within six feet of any of the primates for training purposes or for feeding or things like that, then in addition to the mask and gloves that they're wearing, they're also wearing a face shield," he said.

Zoo's gorilla with child

The news of the first human-to-primate transmission comes after the zoo announced on Monday its 12-year-old western lowland gorilla is expecting her first baby.

Whiteside says while COVID-19 precautions are being appliedto all thegorillas, the mama will spend less time around humans.

"Any of our gorillas are potentially susceptible. The cautions that we take are not only relevant to not only our pregnant gorilla but also with our other gorillas," he said.

"But in particular, making sure that for the pregnant female that they really limit the amount of contact time," he said.

And if any gorillas do test positive forCOVID-19, the vet saysquarantine protocols would be enhanced.

"Making sure that our troop is put into quarantine, really limiting the access of people and staff at the zoo to those back areas and trying to limit the amount of interactions that we actually have with the gorillas during that time," he said.

As for the delivery of the zoo'sbaby gorilla, the vet says a plan has been outlined with theanimal care teams.

"Gorillas in general tend not to have a lot of difficulties giving birth. So we want to just kind of monitor from afar and then let the troop and her, you know, go to a natural birthing process.

"The second step is, if there are complications, then we have procedures in place to deal with any potential complications associated with pregnancy."

If all goes well, the baby gorilla will be ready for public display in June or July.