Vaccinated US Nurse Contracts COVID-19

Vaccinated US Nurse Contracts COVID-19

An American nurse who took the first dose of a vaccine against the new coronavirus in the United States was tested positive for COVID-19 just days after taking the immunizer.

Mathew W., a resident of the city of San Diego, California, received the antiviral developed by the American pharmacist Pfizer on December 18th and, after the application, reported that the only adverse effect felt was pain in the arm in which the vaccine was applied.

However, just six days later, the 45-year-old health worker received a positive diagnosis for the disease. The test was carried out after Mathew started to experience chills, muscle pain and tiredness, after his shift at the COVID-19 patient treatment unit at the hospital where he works.

It is important to note, however, that the case of the American professional is not entirely surprising. That’s because there are two scenarios in which a patient can test positive after the first application of the vaccine.

The first is precisely because only one dose of the immunizer was applied. According to Dr. Christian Ramers, an infectious disease specialist at the Family Health Centers in San Diego, the first application is responsible for granting about 50% immunity against the virus, requiring the application of a second dose to achieve 95% protection effectiveness. In addition, Ramers explains that it takes the body about 10 to 14 days to start developing a level of protection against the virus.

The other possibility is that Mathew was infected with the virus before taking the first dose of the vaccine, since the incubation period for the new coronavirus is 14 days. As he started to show symptoms just six days after the application, this is also a very likely scenario.

It is worth remembering that the Pfizer vaccine has been applied for a few days in countries like the United Kingdom, Canada and the United States. In the latter, another health professional who also received the vaccine suffered from side effects of the application.

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