After concerns on safety triggered a pause, AstraZeneca has resumed clinical trial of it's vaccine.
The vaccine may be approved for use by humans within 3 to 7 days of registration by regulators.
Moderna has already begun experimental testing on humans.
The trials showed protective neutralization of antibodies and immune t-cells aimed at the virus.
The human trials of the Oxford vaccine are expected to be through in September.
Trump's Operation Warp Programme has helped finance the development of 4 COVID-19 vaccines.
The Dutch government disclosed that the UK drugmaker have struck a deal with Germany, France, Italy and Netherlands to provide doses of a possible vaccine.