Experimental animal jabs could stop spillover back to humans, says firm behind vaccines for primates
At the start of 2021, four orangutans and five bonobos became the first great apes at a US zoo to receive Covid-19 vaccinations. An outbreak in San Diego zoo’s western lowland gorilla troop had caused panic among staff after the virus spread to the animals, probably from an asymptomatic zookeeper. Eight gorillas tested positive – with symptoms such as runny noses, lethargy and coughs – and there were fears the virus could spread to other primates.
“We were approached by San Diego zoo asking if we had any vaccine because the primates were getting sick. Luckily, we had some that we thought would be appropriate,” recalls Dr Mahesh Kumar, a senior vice-president at the US veterinary pharmaceutical company Zoetis, which developed the jab.