Scientists in Australia have begun testing two potential coronavirus vaccines in “milestone” lab trials.
The vaccines, made by Oxford University and US company Inovio Pharmaceutical, have been cleared for animal testing by the World Health Organization.
Australia’s national science agency will assess if the vaccines work, and if they would be safe for humans.
The first human trial took place in the US last month, but skipped a stage of animal testing.
There are several other vaccine developments occurring around the world at the moment at extraordinary speed.
But Australia’s Commonwealth Scientific and Industrial Research Organisation (CSIRO) says its tests will be the first comprehensive pre-clinical trials of the vaccines to use an animal model.
Researchers said the speed and level of global co-operation that led to this stage had been unprecedented.
“Normally it takes about one-to-two years to get to this point and we’ve in fact shortened that to a period of a couple of months,” Dr Rob Grenfell from the CSIRO told reporters on Thursday.
Sars-CoV-2 is the virus which causes the disease Covid-19. There are at least 20 vaccines in development around the world.
The first results from the animal tests could be revealed as early as June.
If successful, the vaccines could then be moved into clinical trials that could be conducted at labs elsewhere.