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An American nurse was reported to have tested positive for Covid-19 a week after receiving the vaccine.
However, an infectious disease expert has stated that this is not unexpected and is in line with what is known about the jab.
According to ABC News, Matthew W, an ER nurse in San Diego, received the Pfizer / BioNTech vaccine on December 18.
On Christmas Eve, after working a shift in a Covid room, he felt bad.
The nurse reportedly developed some Covid-19 symptoms and went to a testing site at a hospital and later tested positive for the virus.
Infectious disease expert Dr. Christian Ramers told the news outlet that “it is nothing unexpected.”
Dr. Christian Ramers said, “If you work with the numbers, this is exactly what we would expect to happen if someone were exposed.”
The doctor said it was possible that Matthew W had been infected before receiving the vaccine, adding that the incubation period can be up to two weeks.
He added that even if Matthew was infected after contracting the virus, it is still in line with what is known about the vaccine.
“We know from clinical trials of the vaccine that it will take 10 to 14 days for you to start developing the protection of the vaccine,” said Dr. Ramers.
The Pfizer / BioNTech vaccine requires two doses to be taken and Dr. Ramers noted that the case shows that the results are not immediate.
According to the Executive of the Irish Health Service, the vaccine requires two doses “at least 21 days apart”.
Dr. Ramers told ABC News, “We think that first dose gives you about 50%, and you need that second dose to get up to 95%.”
The first reported US case of the Covid-19 variant seen in the UK has been discovered in Colorado, Governor Jared Polis announced.
The coronavirus variant was found in a man in his 20s who is isolated southeast of Denver and has no travel history, state health officials said.
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