Scientists in Wuhan concluded as the study proved only a portion of hospital workers in China who were in direct contact with infected patients had developed antibodies.
The virus was first discovered in Wuhan late last year.
Experts determine that 4 per cent of the more than 23,000 sampled developed antibodies as of April.
Researchers suggested in a non-peer-reviewed paper posted on MedRxiv.org on Tuesday: “People are unlikely to produce long-lasting protective antibodies against this virus.”
This comes after projections believe the race for the vaccine could turn into a political battle and in America the campaign tool.
Testing has begun on five experimental vaccines and four in the United States.
Anthony S. Fauci, speaking in an interview with the Journal of the Medical Association warned that the political race could leave the effectiveness of a potential vaccine in doubt.
“We’re going to start manufacturing doses of the vaccines way before we even know that the vaccine works.”
Addressing the issue, Donald Trump revealed his expectations for a potential vaccine.
Mr Trump said: Its objective is to finish developing and then to manufacture and distribute a proven coronavirus vaccine as fast as possible.
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AstraZeneca, alongside the UK Government, supports this new COVID vaccine and human trials are already underway.
The company has revealed they have reached agreements to distribute approximately two billion doses across the globe.
Speaking to Belgian radio, Pascal Soriot, AstraZeneca’s chief executive explained phase I of the vaccine in Britain was coming to a close, as phase III has already started.
Phase III is the crucial point to test the effectiveness of the virus as at this stage, the vaccine is issued to people in thousands to test its efficiency.
Mr Soriot said: “We think that it will protect for about a year.
“If all goes well, we will have the results of the clinical trials in August/September.
“We are manufacturing in parallel.
“We will be ready to deliver from October if all goes well.”
The UK Government has also provided funds to another vaccine program in Imperial College London, they have given £41million to the vaccine.
Human Trials are set to take place this week on 300 people.