A MAN believes he is the first person to be successfully vaccinated against coronavirus.
David Rach said results show he has produced antibodies after being injected with Covid-19 as part of a US trial in May.
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The graduate immunology student hailed the results "promising" after they revealed he had higher antibody levels than in recovered Covid patients.
He was the first person to take part in the trial at the University of Maryland, where US pharmaceutical giant Pfizer and German firm BioNTech are working together in the global race to create a vaccine, the Daily Mail reported.
Early indications show the vaccine is working by stimulating the growth of antibodies at rates equal or higher to those who have the illness, according to WJLA.
Mr Rach told the broadcaster: "There is a component of relief seeing that it’s actually producing results, that the vaccine is producing antibodies."
He does not believe he has had coronavirus and pointed out that it would be useless to test a patient who might already have developed antibodies.
Mr Rach added that he cannot be sure whether he was given the actual vaccine or a placebo saline solution.
But after a slight reaction from his second dose, he is convinced he is one of the very few people in the world that may be vaccinated against he bug.
Despite his confidence, Mr Rach is continuing to follow social distancing measures because the effectiveness of the vaccine is uncertain.
He told the Mail: "Does this mean I go around and start to licking doorknobs? Absolutely not.
"I take my temperature every morning and self report any Covid-related symptoms that I might be having."
It will be months before the scientists leading the trial will be able to fully assess the results – and know whether he does have immunity.
They need to wait several months to find out how long antibodies last and be sure that they offer a level of protection against Covid-19.
Does this mean I go around and start to licking doorknobs? Absolutely not
Mr Rach is due to be tested in October to determine whether he does have immunity against the virus.
If the trial proves successful, Pfizer said it will produce 100 million doses before the end of the year and more than a billion doses next year, WJLA reports.
The Maryland study is one of several around the world hoping to be the first to develop a successful vaccine.
Two are taking place in the UK – at Oxford University and Imperial College London.
The Oxford vaccine – considered the front-runner in the global race – was trialled on humans in April.
Meanwhile, China has announced it has developed a vaccine to be used by its military.
The jab was given the green light for use by trips after trials prove it safe and effective, said CanSino Biologics, the biotech firm involved.
It comes after scientists claimed more than two thirds of an area of of New York may be immune to coronavirus and avoid a second wave.
Test results from a clinic in Queens – branded "stunning" by experts – showed 68 per cent of patients had developed antibodies to Covid-19.
The clinic is in the working-class neighbourhood of Corona, according to data from healthcare company CityMD.
At another clinic in Jackson Heights, Queens, 56 per cent tested positive for antibodies.
The data suggests that some neighbourhoods were so exposed to the virus during the peak of the epidemic in March and April that they might have some protection during any second wave of Covid-19, accord to a New York Times report.
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Experts have also warned that there is uncertainty over immunity to coronavirus among people exposed to the virus.
Several studies are ongoing to work out how long immunity may last for and at what level.
It is unclear whether people who have already had Covid-19 are able to contract it again and pass it on.
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